The concept of time applies to ecological situations and evolutionary changes. Ecological change leads to biological change.
What is ecological time?The time period in which a defined and The unit of a new time scale, called, is a constant number of demographic events (i.e. births + deaths). It is ecological time.
What is evolutionary time ?Time is arithmetic in evolution, with units of equal measure being added constantly. Time is directional in the sense that units are never deleted but are always added. A generating process's time scale may differ from an observation's time scale, and this distinction is critical.
What's the difference between evolutionary time and ecological time ?Ecological time may be tuned to environmental change on time scales other than generations, although evolutionary time is measured in generations. Evolution occurs from one generation to the next, and evolution occurs as generations accumulate over longer time intervals.
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What is the dependent and independent variable of children who learn to read before kindergarten more likely to attend college after high school
Dependent variable – children who will attend college after high school
Independent variable – children who learn to read before kindergarten
A variable might be the cause of a change in another variable, or it can be the force that produces the change. In experiments, these are referred to as dependent and independent variables, respectively.
Analytical health research frequently uses two distinct types of variables. It is anticipated that independent variables will have an impact on dependent variables. The term dependent variable refers to what happens as an outcome of the independent variable.
The definition is where dependent and independent variables diverge most.
In research, independent variables can be changed or controlled to observe how they affect other variables.
Other factors affect the dependent variable. It is the variable being measured or tested by the researcher.
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In what way does one activity described for prostaglandins resemble that of a pheromone?
The correct answer is Prostaglandins in semen that induce contractions in the uterus are aiding reproduction as signaling molecules that are transferred from one individual to another of the same species, like pheromones.
A class of lipids called prostaglandins is produced at the sites of injury or infection and is used to treat both disease and injury. They regulate functions like blood flow, blood clot formation, inflammation, and labor induction. Resources for Hormones Glossary of All Hormones.
The production of the inflammatory response is significantly influenced by prostaglandins. Their synthesis is noticeably increased in inflamed tissue, where they contribute to the emergence of the basic symptoms of acute inflammation.
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Snap dragon flower color displays incomplete dominance. Which is the likely phenotypic ratio of the f2 progeny resulting from a monohybrid cross of true-breeding parents with white and red flowers?.
The most likely phenotypic ratio of the F2 progeny from a monohybrid cross is 1 red : 2 pink : 1 white.
The monohybrid cross of true-breeding parents produces a phenotype and also a genotype in the F1 and F2 progenies. The phenotypic ratio refers to the proportion of offspring that exhibit a certain characteristic or set of traits. The phenotype of F1 progeny of a monohybrid cross exhibited by incomplete dominance as in snapdragon flower produces an intermediate of the parental traits. While, the F2 progeny produces varying phenotypes. It produces a phenotypic ratio of 1:2:1 as red:pink:white.
A phenotypic ratio is a numerical comparison of two phenotypes that demonstrates how frequently the occurrence of one trait corresponds with another. The phenotypic ratio produced from a test cross is used by researchers to determine the gene expression for generations of an organism. A phenotypic ratio compares an organism's potential outcomes depending on its outward appearance.
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convert 5mL to hectoliters (conversion factor: 1mL= 0.00001 hectoliters)
-50 hectoliters
-0.5 hectoliters
-0.005 hectoliters
-0.00005 hectoliters
Taking into account the change of units, the correct answer is the last option: 5 mL equals 0.00005 hectoliters.
Rule of threeThe rule of three is a way of solving problems of proportionality between three known values and an unknown value, establishing a relationship of proportionality between all of them.
If the relationship between the magnitudes is direct, the direct rule of three must be applied with the following formula must be followed, being a, b and c known data and x the variable to be calculated:
a ⇒ b
c ⇒ x
So: x= (c×b) ÷a
The direct rule of three is the rule applied in this case where there is a change of units.
Change of units in this caseTo perform in this case the conversion of units, you must first know that 1 mL= 0.00001 hectoliters.
So, you can apply the following rule of three: if 1 mL equals 0.00001 hectoliters, 5 mL equals how many hectoliters?
1 mL ⇒ 0.00001 hectoliters
5 mL ⇒ x
So: x=(5 mL× 0.00001 hectoliters)÷ 1 mL
Solving:
x= 0.00005 hectoliters
In summary, the correct answer is the last option: 5 mL equals 0.00005 hectoliters.
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How does an increase in the CO₂ concentration in the blood affect the pH of cerebrospinal fluid?
The rate of CO₂ diffusion into the cerebral fluid rises with the increase in the CO₂ content in the bloodstream. The formation of carbonic acid when CO₂ reacts with water lowers the pH of the cerebral fluid.
The breakdown of carbonic acid results in the release of hydrogen ions. The CSF fluid's pH rises as a result of the hydrogen ions. At the cellular level, carbon dioxide is released as a consequence of the metabolic process (glycolysis and citric acid cycle). It is expelled from the body by way of breathing out. The amount of carbon dioxide in the body is crucial for maintaining proper blood pH, internal respiration, and many other processes. Retention of carbon dioxide in the body leads to hypercapnia. There are three basic ways that the bloodstream carries the carbon dioxide from the peripheral tissues to the lungs. These are carbaminohemoglobin, bicarbonates, and dissolved gas.The tissues that encircle the neurological system contain cerebrospinal fluid (brain and spinal cord). This liquid flushes carbon dioxide and other metabolic waste from the brain.Due to the synthesis of carbolic acid at high CO₂ levels, the bloodstream's hydrogen ion concentration increases. Acidosis and a drop of pH are the outcomes. Thus, as blood carbon dioxide levels rise, the cerebrospinal fluid becomes more acidic.Learn more about the cerebrospinal fluid with the help of the given link:
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An enzyme that is catalyzing a reaction at the maximum rate is said to be ______.
An enzyme that is catalyzing a reaction at the maximum rate is said to be saturated.
An enzyme can be described as a biological catalyst that speeds up a reaction. Optimal conditions should be provided to an enzyme in order for it to work best.
The enzymes have a specific site, known as the active site, where a substrate fits in order to speed up a reaction.
As we keep on increasing the concentration of a substrate, more and more active sites of that particular enzyme get filled. At this point, the catalysis activity is at the maximum rate as there are no more active sites left. At this stage, we say that the enzyme is saturated. The rate of a reaction will be maximum when an enzyme is saturated.
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Person who proposed evolution as a scientific theory was
Answer:
Charles Darwin
Explanation:
Answer:The answer is Charles Darwin
Explanation:Please give brainliest if right.
a homozygous red-eyed female drosophila mates with a red-eyed male drosophila. what proportion of the female offspring will have white eyes?
Thus, 50% of male and female offspring are red and white eyed. In terms of genetics, being homozygous means having inherited the same alleles (versions) of a genomic marker from both biological parents. A person who possesses two identical copies of a genetic marker is said to be homozygous for that marker.
Both homozygous (two alleles for brown eyes) and heterozygous individuals can have brown eyes (one for brown and one for blue). Contrary to the recessive blue eye allele, this one is dominant. To have blue eyes, you must possess two identical blue eye alleles. Allele pairings are categorized using the terms homozygous and heterozygous.
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place each of the labels into the proper category in order to indicate whether they relate to anatomy or physiology.
The correct labeling is given below:
AnatomyStudy of formEach kidney contains approximately 6-10 pyramidsThe human heart is comprised of four chambersThe brachial artery gives rise to the ulnar and radial arteriesThe brain is composed of two hemispheresMitochondria are cellular organelles more numerous in active cellsThe major muscle located at the back of the upper arm has three heads or originsPhysiologyStudy of functionCellular energy requires the body's production of ATPGlucose (a form of simple carbohydrate) is a necessary fuel for the brainHeart cells are capable of contracting on their own because of autorhythmicityThe long-term acid-base balance of the body is controlled by the kidneysThe above labels all show the proper label which they fall under anatomy or physiology.
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Wei is experimenting with using gene therapy to silence cancer genes. he hopes to at some point use his discoveries to treat human patients. which model organism should wei use?
The model organism that Wei should use to test the discovery of the experiment of using gene therapy to silence cancer genes is: Mus musculus.
Gene therapy is the technique that involves the treatment of disorders and diseases on the genetic level. It involves the correction of the faulty genes either by addition, substitution or any other possible method. Gene therapy is used to treat various inherited diseases.
Mus musculus is commonly known as the house mice. It is the most widely used model organism for testing various drugs and other experiments that are especially implemented for human benefits. It is the most used model organism because its almost 85 % genome matches with that of the humans.
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Although pus is often seen simply as a sign of infection, it is also an indicator of immune defenses in action. Explain.
Pus shows an active and at least partially successful inflammatory response against invasive pathogens since pus contains WBCs, fluid, and cell debris.
What causes inflammatory?Pathogenic microorganisms, such as bacteria, viruses, or fungi. Effects of chemicals or radiation. External injuries such as scratches or injury from external objects (such as a thorn in your finger).
What are the most prevalent inflammatory diseases?A few prevalent inflammatory illnessesFat in the liver. Poor diet, which can produce an inflammatory response, can lead to fatty liver disease.Endometriosis.Diabetes mellitus type 2Diabetes mellitus type 1IBD, or inflammatory bowel diseaseAsthma.Arthritis rheumatica.Obesity.To know more about Inflammatory visit:
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lidar based biomass and crop nitrogen estimates for rapid, non-destructive assessment of wheat nitrogen status,"
In early development green TLS can be helpful to enhance nitrogen management.
To enhance nitrogen management decisions, crop nitrogen optical remote sensing is being developed for diagnostic use. To calculate the nitrogen nutrition index, dry mass per unit area of nitrogen and concentration functions are taken. NNI is the ratio of the actual concentration of nitrogen in percent and minimum nitrogen concentration in percent. During stages of early growth, to know crop nitrogen status optical remote sensing is essential. But there are high risks of errors because of the influence of soil spectral reflection.
If TLS point data are used for deriving the actual concentration of nitrogen from green and quantifying physical W in Terrestrial LiDAR then this can pacify the errors. In an experiment, Green TLS measurements of winter wheat for two seasons were collected. Based on the experiment, it was observed that there exists a strong relationship between the intensity return of green laser and % Na.
Therefore, in early development green TLS can be helpful to enhance nitrogen management.
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the disease called multiple sclerosis involves an immune response against myelin of the central nervous system, causing scar formation (sclerosis) within the neural tissue. how would this affect nerve impulse conduction?
In multiple sclerosis the impulses are suppressed or stopped causing scar formation (sclerosis) within the neural tissue.
Multiple sclerosis (MS) can paralyze the brain and spinal cord (central nervous system). Myelin, the protective sheath that protects nerve fibers, is attacked by the immune system in MS, affecting communication between the brain and body. This condition can eventually lead to neurodegeneration or irreversible disability. Signs and symptoms of MS vary widely, depending on the degree of nerve damage and the nerves affected. Some people with multiple sclerosis lose the ability to walk on their own or become unable to walk at all, while others walk long distances without developing new symptoms. Axons are properly protected by the myelin sheath and these neurons perform their intended function. When the myelin sheath is destroyed in multiple sclerosis-affected nerves, the nerve axons become demyelinated.Therefore, blockage of impulses is the correct answer.
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The contraction of muscle cells requires the chemical breakdown of atp into adp, which releases energy for the cell. what type of molecule lowers the activation energy required to start the breakdown of atp
Catalysts molecule lowers the activation energy required to start the breakdown of ATP.
Activation energy is the minimum quantity of strength that want to be supplied for compounds to result in a chemical response. The activation power of a reaction is measured in joules consistent with mole, kilojoules per mole or kilocalories consistent with mole. The deliver of activation strength is generally warmth, with reactant molecules soaking up thermal power from their surroundings.
Activation energy is the minimal strength required to motive a response to occur. To apprehend activation energy, we have to first don't forget how a chemical response takes place. everyone who has ever lit a hearth ought to have an intuitive know-how of the gadget, despite the fact that they have got now not linked it to chemistry.
The feature of activation energy in a chemical reaction is to start the response by means of using arranging the reactants appropriately and breaking their cutting-edge bonds. Activation energy is the strength had to begin a reaction and is needed in all chemical reactions.
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____ cells are involved in important human experiences, including memory, alzheimer's disease, pain, and certain psychological disorders.
glial cells are involved in important human experiences, including memory, Alzheimer's disease, pain, and certain psychological disorders.
Glial cells are a general term for a variety of glial cell types, such as microglial, astrocytes, and Schwann cells, each of which has a specific function in the body. Glial cells are non-neuronal cells that are found in both the central nervous system and the peripheral nervous system. They provide physical and metabolic support to neurons, including neuronal insulation and communication as well as nutrient and waste transport. Each variety of glial cells carries out particular tasks that maintain the brain operating.
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Mice that experience stress such as a food shortage will sometimes abandon their young. Explain how this behavior might have evolved in the context of reproductive trade-offs and life history.
The animal's fitness may increase if it abandons its current young and survives to generate healthier young at a later time if a parent's survival is significantly damaged by having young during stressful circumstances.
Reproductive trade-offs :A condition known as an evolutionary trade-off occurs when evolution is unable to advance one component of a biological system without causing suffering to a different component.
Given the restricted quantity of resources available, a biological trade-off is typically thought of as a situation where an increase in the performance of one attribute results in a loss in the performance of another (energy, time, space, etc. )
Why does evolutionary trade-off happen ?When organisms develop adapted features for one purpose while doing less well in an unselected trait, genetic trade-offs emerge. Our research demonstrates that under different kinds of selection pressures, viruses frequently suffer evolutionary trade-offs.
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One study of 781 men and women age 21 found a clear relationship between elevated blood levels of ________ (which correspond to lower brain levels of the chemical) and violence in men.
One study of 781 men and women age 21 found a clear relationship between elevated blood levels of serotonin (which correspond to lower brain levels of the chemical) and violence in men.
Serotonin is a chemical works as a messenger between the body and the brain. It has an important role in the functions like digestion, sleep, mood, wound healing, blood clotting, nausea and sexual desire.
It is also said to be associated with top to bottom neurobiological cycles associated with aggression. Individuals with elevated level of serotonin in the blood are said to be more prone to aggression and violence in men.
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pelvic incidence: a fundamental pelvic parameter for three-dimensional regulation of spinal sagittal curves
In this work, the pelvic incidence is proposed as the primary anatomical criterion for controlling the spinal balance.
The sagittal characteristics of the pelvis and spine were examined in adult participants with normal and scoliotic curves. Statistical analysis was used to assess the relationship between pelvic orientation and spinal sagittal balance. Both normal and scoliotic participants showed a high correlation between the anatomical characteristic of pelvic incidence and the sacral slope, which heavily influences lumbar lordosis.This network of relationships between the pelvis and spine acquires a three-dimensional quality when the Cobb angle and apical vertebral rotation are taken into consideration. A predictive equation of lordosis is postulated. The primary axis of the spine's sagittal equilibrium appears to be the pelvic incidence. It regulates spinal curves in accordance with the other parameters' adaptability.To learn more about spinal sagittal curves visit:
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Which of the following is characteristic of most terrestrial biomes? a. a distribution predicted almost entirely by rock and soil patterns b. clear boundaries between adjacent biomes c. vegetation demonstrating vertical layering d. cold winter months
The characteristic of most terrestrial biomes are vegetation demonstrating vertical layering and cold winter months.
What is terrestrial biomes?A terrestrial biome is a region of land with a similar climate, plant and animal groups, and flora and fauna. Different terrestrial biomes are typically identified by their vegetation, which include trees, shrubs, and grasses.
The most important abiotic element influencing the spread of terrestrial biomes is climate. The growing season and soil quality are determined by climate, which includes temperature and precipitation. It is the single most important factor influencing the number and diversity of plants in terrestrial biomes.
Two characteristics determine a terrestrial biome?Biomes are large-scale habitats differentiated by distinct temperature ranges and precipitation levels. These two factors have an impact on the types of vegetation and animal life that can occur in certain places.
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What is not a function of the peroxisome? break down fatty acids synthesize certain phospholipids protein synthesis oxidize toxic substances
Protein synthesis is actually not the function of the peroxisome.
Peroxisomes are the organelles that sequester the diverse oxidative reactions and also play the important roles in the metabolism, reactive and oxygen species the detoxification, and the signaling. the Oxidative pathways housed in the peroxisomes include the fatty acid β-oxidation, which also contributes to the embryogenesis, the seedling the growth, and the stomatal opening. the Peroxisomes are the eukaryotic organelles whose has major functions are the lipid metabolism and the detoxification.
They are spherical or to ovoid structures with the phospholipid bilayer and the collection of the enzymes in their core. the Peroxisomes play a key role in the oxidation of the specific biomolecules. They also have contribute to the biosynthesis of the membrane lipids known as teh plasmalogens. In plant cells, the peroxisomes carry out the additional functions, including the recycling of the carbon from phosphoglycolate and during photorespiration.
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Respiration uses the _________________ you eat and the _________________ you breathe to make _______________, ______________________________, and ___________________________.
Respiration uses the energy from food that you eat and the oxygen from the air you breathe to make energy rich compounds and provide energy to do tasks.
All living cells engage in respiration, a chemical process that releases energy from glucose. With oxygen present, aerobic respiration produces more energy but does so more gradually. We get our energy from the stuff we eat. Our bodies break down the food we eat by combining it in the stomach with fluids (acids and enzymes). The carbohydrate (sugars and starches) in food is broken down into another type of sugar, called glucose, during digestion in the stomach.
Carbohydrates, lipids, and proteins are the three main categories of fuel molecules that provide energy to humans. These molecules' kinetic, thermal, and other chemical forms are created from their potential chemical energy.
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How does the shape of red blood cells best represent the relationship between structure and function? long, armlike extensions let blood cells transfer oxygen to the body. long, armlike extensions let blood cells transfer oxygen to the body. being expandable allows red blood cells to hold more oxygen. being expandable allows red blood cells to hold more oxygen. the round shape helps encourage clotting by plugging up vessels. the round shape helps encourage clotting by plugging up vessels. the smooth disc shape lets cells flow smoothly through veins and arteries.
Answer:
D
Explanation:
How do the processes of
light-dependent and light-
independent reactions
helpthe cell conserve
energy and matter?
Answer:
Explanation:
The manner in which processes of light-dependent and light-independent reactions is it helps the cell to conserve both energy and matter is that the outputs of one reaction are used as the inputs of the other reaction.
Scientists often use measures of "higher-order thinking" to assess intelligence in other animals. For example, birds are judged to have sophisticated thought processes because they can use tools and make use of abstract concepts. What problems do you see in defining intelligence in these ways?
Animals with higher intelligence have certain brain features that make them smarter. The neocortex is one of these, and it is necessary for complex cognition. Animals such as birds are less intelligent because they lack these structures..
Briefing:All mammals have a neocortex, albeit the neocortex's dimensions and structural makeup vary widely among mammalian taxa. The neocortex performs cognitive, perceptual, logical, and motor control activities.
Are there neocortex in birds?There is no neocortex in the tiny brains of birds, and they have different structures and connections than primates do. This should not come as a surprise considering that more nearly 200 million years ago, birds diverged from the evolutionary pathway that led to mammals, then to primates, and ultimately to humans.
How do birds manage to be so smart?Birds generally have brains that are larger than their heads. The tactile, as well as olfactory senses, as well as olfactory senses, are only fully realized in a small number of groups, but the auditory and visual senses are quite well developed in the majority of species. As well as calling and singing, birds also use visual cues to communicate.
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The surface indentation that separates the atria from the ventricles is known as the?
Atrioventricular septum is the surface indentation that separates the atria from the ventricles.
What is an atrioventricular septum?The interatrial and interventricular septal cross the atrioventricular annular plane and merge with the septum tricuspid and anterior mitral leaflet attachment at the septal atrioventricular junction, which is a critical region of the heart.
The tricuspid and mitral valves seem cruciate on a four-chamber view when both septa are converging, earning the term crux of the heart, cardiac crux, or crux cordis.
The atrioventricular septum, a septal component dividing the atria from the left ventricle, is a distinctive anatomic characteristic of the atrioventricular junction.
Therefore, the atrioventricular septum is the indentation that separates the atria from the ventricles.
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If any of the traits that mendel worked with were linked genes, his dihybrid crosses would have?
If any of the traits that Mendel worked with were linked genes, his dihybrid crosses would have NOT yielded the phenotypic ratio 9:3:3:1.
What are linked genes?Linked genes are genes found in the same chromosomes, which produce a distortion of the law of segregation proposed by Mendel due they may be inherited as a unit.
In conclusion, If any of the traits that Mendel worked with were linked genes, his dihybrid crosses would have NOT yielded the phenotypic ratio 9:3:3:1.
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They eat and drink out of vessels of earth or glass, which make an agreeable appearance, though formed of brittle materials; while they make their chamber-pots and close-stools of gold and silver, and that not only in their public halls but in their private houses. of the same metals they likewise make chains and fetters for their slaves, to some of which, as a badge of infamy, they hang an earring of gold, and make others wear a chain or a coronet of the same metal; and thus they take care by all possible means to render gold and silver of no esteem . . . â€"utopia, thomas more which details develop the central idea by giving examples of ways the utopians make gold and silver less valuable? check all that apply. the utopians drink from glass cups. the utopians make chamber-pots out of gold. the utopians have public halls and private houses the utopians use gold to chain enslaved people. the utopians work hard to make gold and silver seem less valuable.
Answer:
B, and D
The Utopians make chamber-pots out of gold.
The Utopians use gold to chain enslaved people.
Explanation:
Answer:xB and D: The Utopians make chamber-pots out of gold.The Utopians use gold to chain enslaved people.
Explanation:I hope it helps 2023
When your first child is six months old, you hang a tire swing from a tree limb in your backyard. The bottom of the tire is six inches from the ground. When your child graduates college 22 years later, the tree is now ten feet taller than it was when you hung the tire swing. Neglecting soil erosion and any increased thickness of the limb, how far from the ground is the bottom of the tire?.
There will be about 6 inches between the bottom of the tire which is hanging in the branch of the tree and the ground.
The primary cause of this is because a tree's development always takes the shape of radial growth. In this case, the axis of the tree or plant continues to produce additional branches.
The leaves continue to develop, and the primary branch produces several other little branches. There are two ways that trees grow. Primary growth refers to growth that occurs at the root and shoot tips and results in height and length increases.
Secondary growth refers to development that makes stems and branches thicker. Small regions known as apical meristems are the sites of primary growth.
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The slopes of the flying and swimming lines are very similar. Based on your answer to question 2 , if the energy cost of a 2 -g swimming animal is 1.2 cal/ kg . m , what is the estimated energy cost of a 2-kg swimming animal?
Estimated energy cost of a 2-kg swimming animal will be 1200cal/kg
Estimated cost = 1.2cal/ kg x 2 kg/2 -g
Estimated cost = 1200cal/kg
What Energy is used in swimming ?Potential energy is present in the muscles that will propel you ahead at the beginning, and kinetic energy is present in your movement through the water. You eventually come to a stop as the water uses up all the energy. Heat is created by the energy.
The occurrence of many mechanisms for energy recycling in the muscle cells during exercise underlies the significance of energy zones in swimming. Non-aerobic metabolism (creatine phosphate), anaerobic metabolism (anaerobic glycolysis), and aerobic metabolism are the three basic mechanisms for energy recycling.Learn more about Swimming here:
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In a car accident, a person sustained major trauma to his brain and the spinal cord region of his neck. damage, in this case, was mainly to areas of the __________ nervous system.
In a car accident, a person sustained major trauma to his brain and the spinal cord region of his neck. damage, in this case, was mainly to areas of the central nervous system.
Central nervous system comprises of the brain and spinal cord which together performs the process of receiving, processing, controlling, and coordinating the functions of the body.
The brain is covered with cranium and the skull bone while the spinal cord is protected by the vertebrae. Both the brain and the spinal cord consist of grey matter and white matter.
The spinal cords continuous from the medulla that is the last part of the brain. Hence when the person got a damage in the brain and the spinal cord he got injured in the central nervous system.
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