Excretion is the process by which metabolic wastes and other non-useful materials are removed from an organism. Through excretion, the electrochemical composition of intracellular and extracellular fluids is regulated, thus ensuring the vital functions of the organism. The human body carries out waste excretion processes through the skin, the lungs, the digestive system, and the kidneys.
Then, we can conclude that the correct answer is:
Answer:Excretion is an essential process in which waste products are removed from the organism. Without excretion, waste products build up in the organism and cause serious health issues.
Which of the following best describes what happens during the phases of mitosis shown in the diagram?
The given diagram represents Metaphase and Anaphase on the left and right sides respectively, which occur during mitosis.
The diagram depicts two phases, i.e. Metaphase as well as Anaphase, which are observed during the process of mitosis. Mitosis can be defined as a type of cell division where a particular cell (parent cell) undergoes division in order to give rise to two new cells (daughter cells). These newly formed cells are genetically similar to the parent cell.
During Metaphase, the chromosomes appear to be arranged in the central region of the cell in a linear fashion. During Anaphase, the chromatids segregate from each other and progress towards opposite ends of the cell undergoing mitosis.
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Place the following steps in correct order for the B Cell response:Helper T cells recognizes antigens from foreign invaderAnswer 1Activated B cell produces specific plasma cellsAnswer 2Helper T cell activates B cellsAnswer 3Plasma cells release antibodies that kill the pathogenAnswer 4Pathogen enters the bodyAnswer 5
B cells have two types of response, one is dependent on T cells, and the other is not dependent. In the first case, B cells are activated by helper T cells, that way a B cell with antibodies is produced. Therefore the order is as follows:
Helper T cells recognize antigens from foreign invaders (2)
Activated B cell produces specific plasma cells (4)
Helper T cell activates B cells (3)
Plasma cells release antibodies that kill the pathogen (5)
The pathogen enters the body (1)
Definition of agricultural expansion
Agricultural explansion refers to the growth of land dedicated to agricultural activities such as arable land, pastures, animal breeding, mass crops, etc.
CO2 + H2O → C6H12O6 + O2
What, is the correct way to balance this equation?
a
6CO2 + H2O → C6H12O6 + O2
b
6CO2 + 6H2O → C6H12O6 + 6O2
c
6CO2 + 6H2O → C6H12O6 + O2
d
CO2 + H2O → C6H12O6 + O2
Introduction to Psychology and Role of BiologyMini Brain ProjectDirections: Conduct research on a selected brain area or structure. Areas and structures available for research include: frontal lobe, parietal lobe, temporal lobe, occipital lobe, medulla, pons, cerebellum, reticular formation, thalamus, hypothalamus, limbic system, cerebrum, hippocampus, amygdala, corpus callosum, Broca’s area, OR Wernicke’s area. Conduct research using scholarly Internet sources, library sources, and the textbook. Where is the area or structure located?
The frontal lobes are located directly behind the forehead.
The parietal lobes are located near the back and top of the head.
The temporal lobes sit behind the ears.
The occipital lobe is the smallest of the four lobes of the cerebral hemisphere. It is present posterior to the parietal and temporal lobes.
The pons is in the brainstem situated between the midbrain and the medulla oblongata, and in front of the cerebellum. A separating groove between the pons and the medulla is the inferior pontine sulcus.
The cerebellum is a structure that is located at the back of the brain, underlying the occipital and temporal lobes of the cerebral cortex.
The reticular formation is found in the brainstem, at the center of an area of the brainstem.
The thalamus is a paired gray matter structure of the diencephalon located near the center of the brain.
The hypothalamus is located on the undersurface of the brain.
You can find the structures of the limbic system buried deep within the brain, underneath the cerebral cortex, and above the brainstem.
The cerebrum is located within the bony cranium. It extends from the frontal bone anteriorly to the occipital bone posteriorly.
Hippocampus is a complex brain structure embedded deep into temporal lobe.
The amygdala is located in the medial temporal lobe
Corpus callosum s located in the white matter of the cerebrum and is around 10cm long at the midline.
What percent of energy is passed on to the next trophic level in an ecosystem?100109050
Based on the diagram, about 10% or 0.1 energy is absorbed by the next trophic level. The rest of the energy are released as heat.
ANSWER: 10%
Can you explain to me the acholic energy reaction (atp) you get from yeast
Fermentation is a way to obtain energy from carbohydrates when there is no oxygen available. Fermentation can be realized for many organisms, even when is not the main source of energy. For example, humans can realize lactic fermentation.
There are different types of fermentation depending on what substance is produced. In ethanol or alcoholic fermentation, the organisms take the carbohydrates and produce ATP, ethanol, and carbon dioxide. An example of organisms that perform alcoholic fermentation is yeast.
Pathogens can cause disease byA. radiation, damaging cellsB. damaging cells, producing toxinsC. radiation, damaging DNAD. damaging DNA, toxinsand
the correct option is B. Damaging cells and producing toxins.
The number of bubbles released when the light source is at a distance of 38 centimeters would most likely be closest to____.An experiment was set up to test the effect o light intensity on the rate of photosynthesis, as shown in the diagram below. Data were collected by counting gas bubbles released in a 5-minute period when the light source was placed at various distances from the experimental set up. The data are shown in the table below.
The answer to this question would be 10, because based on the table, as the light distance increases, the bubbles released decrease.
Use the image as a resource to answer the following question:
To answer this question we need to remember quickly how proteins are produced and transported in the cell, first are produced in the ribosomes attached to the rough endoplasmatic reticulum, after this, proteins are transported to the Golgi apparatus where are modified and packed in vesicles for transport inside the cell and the outside.
The order is as follows
1.- Rough ER
2.-Golgi bodies/Golgi apparatus
3.-Vesicle
4.-Nucleus
5.-Ribosome
what is an advantage of solar power?A. requires small amount of physical space B. releases greenhouse gasses C. most abundant energy source D. can generate electricity at all times
Solar power is one of the most promising sources of energy, and among its benefits, a very important one is the fact that it is the most abundant energy source. Answer: letter C.
Will the amount of hydrogen in the sun increase or decrease over the next few million years? Explain your reasoning.
The amount of hydrogen in the Sun is related to its core size, being the fuse of hydrogen atoms process the one that speeds up the sun increases. Today the amount of hydrogen and its fuse to make helium in the core is leqading toa 1% of increase in tluminosity every 100 million years, being 600 million tons of hydrogen fuse every second (forming 596 million tons of helium). It is estimated that in 5 billion yearsthe Sun will start to run out of hydrogen and begin to collapse . Therefore, it is estimated that the amount of hydrogen in the Sun is decreasing gradually since the star was born, because that amount is direct related to the core force and shine capacity of the Sun.th
Why did the sinkhole form only over the sugar deposit?
This will symbolize groundwater. Place the cup with the sugar and sand in the water. Watch as the water fills into the cup and the sugar dissolves and runs out. A sinkhole is formed in the cup as the surface sand sinks into the area where the sugar dissolved.
Functions of liver and what does it mean that Liver metabolises Fats Etc
The liver is considered as the largest internal organ. The liver plays a role in filtration. It acts as a filter of the body. All blood theat leaves the stomach and intestines passes through the liver. It detoxifies the blood. It also acts on digestion. It make and secrete bile that are responsible for the purification of blood coming from the small intestines. Liver is an important organ responsible for making proteins.
Liver is acts on the metabolism of fat. The liver cells break down fats to produce energy. This is happening during fasting state of an individual. Half the fat from a meal is being burned for energy. The rest is stored to adipose tissue until it is needed during fasting.
Fill in the blanks then explain:Volcanic eruptions has ______ and _____ effect on the environment
Volcanic eruptions has the release of volcanic gas and it can provoke climate changes that have a negative effect on the environment.
The volcanic gases are harmful for the environment, there is multiple substances in the volcanic gas, since water molecules (harmless), carbon dioxide, and surfur dioxide. When thr volcanic gases are realesed in the atmosphere it causes climate changes, such as increase the temperature, cause changes in the oceanic cycle, increase the levels of carbon dioxide, and so on. All that actions provoke changes and negative effects in the general environment, being more present in the closer vicinity of the eruption.
Which 2 processes lead to variety?
1. Mutations
2. Incomplete Meiosis
3. Nondisjunction
Answer:
mutations leads to variety
The correct way to calculate population size is by dividing the total population by the land area.TrueFalse
When you want to calculate the size of a population or the population density of that species, just do the following math: divide the total amount of the population by the area occupied by these individuals.
In this way, the population density is found and we can know the size of the population.
The statement is true.
1. Many simple eukaryotes reproduce by asexual reproduction, using onlymitosis. Assuming the environment is stable and the organism is well-adapted to its environment, why is this a better form of reproduction?
In this hypothetical case, the environment is very stable in which case there wouldn't be a selective pressure, therefore there is no need to recombine genetic material, a process that implies a high energetic investment, because there would have to be a high production of gametes, each with its respective process of recombination, as well as the effort to search for a partner to which exchange genetic material.
A stimulus resulting in the contraction of the biceps, will have originated in which of the following structures?Select one:a.precentral sulcusb.insular lobec.parietal lobe, left sided.post central gyruse.occipital lobe
a. The precentral sulcus is located in the rostral to the central sulcus in the frontal lobe. This area is considered the somatomotor cortex because it control the volitional movements of the collateral side of the body.
b. The insular lobe is an anatomical integration hub that connects to an extensive network of cortical and subcortical regions serving sensory, emotional, motivational, and cognitive functions.
c. The left side of the parietal lobe controls sensory perception and language processing.
d. The postcentral gyrus located in the main somatosensory area of the frontal cortex is the main sensory receptor for the sense of touch.
e. The occipital lobe is located in the back of the brain and is the smallest of the four lobes, it enables visual processing and visual memory.
The correct option is
18. A cell membrane with no proteins will still show which process?a. active transportb. transductionc. facilitated diffusiond. osmosise. receptor-mediated endocytosis
The options given are different ways of cells transport, most of which require the presence of proteins, even if they don't use energy. The only mode of cell transport that doesn't involve proteins is osmosis (D).
What is the role of ATP in transport across a cell membrane?O ATP is an energy molecule that helps with active transport.O ATP is an enzyme that speeds up chemical reactions in the cell.O ATP is an amino acid that is used to build transport proteins.O ATP is a carrier protein that transports substances across the cell membrane.
The correct option is the first one "ATP is an energy molecule that helps with active transport." ATP refers to "Adenosine Tri-Phosphate" which is a pretty useful molecule in every physiolocal issue of every cell. Therefore, it is very important with active transport. When ATP losses one of its phosphates (remember it has three) -it becomes ADP- it releases a high amount of energy which is useful for several processes, among them, active transport.
How does reproductive isolation differ in sympatric modes and allopatric modes of speciation?This is not a homework assignment.
To answer this question we need to remember some concepts, reproductive isolation is a phenomenon in which a population is isolated and cannot reproduce, this isolation can be due to a physical barrier or a genetic barrier, meanwhile, allopatry and sympatry are speciation mechanisms, this means that are processes of change among the populations and in both, reproductive isolation is involved, in the case of allopatry the barrier is physical, and in the case of sympatry, the barrier is genetic. So we can say that one is a phenomenon tha separates organisms meanwhile the others ar processes of change, therefore evolutive process
Which of the following is a way that the body determines how much of a certain chemical, protein, enzyme, or response is needed to maintain homeostasis?Question options:A) Kickback inhibitionB) Feedback inhibitionC) Signal loopD) Resource limitation
The correct answer is B) feedback inhibition. This mechanism works when a certain concentration of the key product has been reached. When no more product is needed, this mechanism is activate, which allows cell metabolic equilibrium.
Caterpillars eat a lot of plants.What could the plant do toprotect itself fromcaterpillars?A. move awayB. produce a toxinC. produce a tasty fruitD. plants can't do anything to protectthemselves
The correct answer is B. produce a toxin. Plants produce toxins when herbivores eat them.
Answer: B. produce a toxin
Explanation:
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In this case, we can see that in the image is shown a type of asexual reproduction through propagules, when we are talking of asexual reproduction we are implying that there is no sexual recombination therefore all the organisms created by asexual reproduction are genetical clones of the parental plant. Taking this into consideration we can say that the correct answer is option 4.
Hi I don’t quite understand this question in my assignment, I need help please,Appreciate it thank you
This type of active transport is called endocytosis, because the substance to be internalized is first surrounded by the cell membrane, forming a vesicle, which is then integrated into the cytoplasm.
Match the following tools and techniques with the correct identifying statement, please.
Gel electrophoresis is a technique that is used to separate DNA on the basis of size and charge.
DNA fingerprinting is often used in the field of forensic science.
Polymerase chain reaction is a technique used to increase the number of copies of a specific region of DNA.
Cloning is a method used to make a genetically identical replicate of a multicellular organism.
CRISPR is a recent genome editing technology, considered to be faster and more efficient.
What are the four spheres on earth and describe them. Give an example of how humans interact with each sphere.
The four spheres of the Earth include:
Atmosphere- the gaseous layer of the earth
Ex. We can interact with the atmosphere through the gases that we inhale- oxygen (O2) and exhale- carbon dioxide (CO2).
Lithosphere- refers to other solid crust of the Earth
Ex. Humans can interact with the lithosphere through agriculture (source of food), mining, building infrastructure.
Hydrosphere- comprises all water in the Earth
Ex. We can interact with the hydrosphere through the water that we drink.
Biosphere- includes all the living things on the Earth
Ex. We can interact with the biosphere through hunting (source of food)
Explain why gas exchange surfaces, like the alveoli in our lungs, are always moist?
Gas exchange surfaces, like the alveoli in our lungs are always moist to allow the exchange of carbon dioxide and oxygen gases.
In animals, the process of respiration is aerobic respiration, exchange of gases takes place( carbon dioxide leaving the cell, oxygen entering)
Single cellular organisms can exchange gases directly across their cell membrane through the process o diffusion.
Large animals that cannot maintain gas exchange processed by diffusion across their outer surface. A respiratory surface is covered with thin, moist epithelial cells that allow oxygen and carbon dioxide to exchange. Carbon dioxide and oxygen are the gases that can only cross cell membranes when they are dissolved in water or an aqueous solution, thus respiratory surfaces must be moist.
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True or False?The sun is the only star in our galaxy.
A galaxy is composed of numerous solar systems. These systems are composed of stars, planets, dwarf planets, asteroids, and comets.
ANSWER: False