Answer:
BBA Molecular Basis of Disease addresses the biochemistry and molecular genetics of disease processes and models of human disease. This journal covers aspects of aging, cancer, metabolic-, neurological-, and immunological-based disease.
Explanation:
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In which type of cell do both DNA replication and cellular respiration take place in the cytosol?
- Animal cell
-Fungal cell
-Plant cell
-Bacterial cell
Both DNA replication and cellular respiration take place in the cytosol of a Bacterial cell.
What is a bacterial cell?
Small, single-celled organisms called bacteria exist. Nearly all areas of the world are home to bacteria, which are essential to its ecosystems. Some species can survive in environments with high pressure and temperatures. In fact, it's thought that there are more bacterial cells in the human body than there are human cells. Bacterial cells don't have a nuclear membrane therefore both DNA replication and cellular respiration take place in the cytosol. Hence, bacterial cells do both.
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hotosynthesis makes glucose while cellular respiration _______________________ glucose
Answer: Cellular respiration breaks down glucose
Explanation:
Cellular respiration is a series of chemical reactions that break down glucose to produce ATP.
Critical Thinking and Applications
1. The brother of a woman's father has hemophilia. Her father does not have
hemophilia, but she is concerned that her son might. Could she have
passed the allele for hemophilia to her son? Explain.
No she have passed the allele for hemophilia to her son
Hemophilia is caused by a mutation or change and in one of the genes that provides instruction for making the clotting factor proteins needed to form a blood clot and this change or mutation can prevent the clotting protein from working properly or to n=be missing altogether and these genes are located on the X chromosomes and the symptoms are
Unexplained and excessive bleeding from cuts and injuries or after surgery or dental workmany large or deep bruisesunusual bleeding after vaccinationpain and swelling or tightness in your jointsAnd if mother is heterozygotes for hemophilia and the father does not have so each son or daughters has an 1 in 2 chances of getting hemophilia and here in this case the brother of a woman's father has hemophilia her father does not have hemophilia, but she is concerned that her son might so the son doesn't have hemophilia because her father does not have hemophilia her uncle has hemophilia so she doesn't passed the allele for hemophilia to her son
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Rats are endothermic (warm blooded) animals. Explain why the physiology of a perch (an exothermic or cold blooded animal) would not support the metabolic needs of a rat.
They can readily adjust to any maximum temperature, allowing them to survive there. Rats were toasty endothermic animals. As a result, a rat's physiological needs wouldn't be met by the physiology of perches.
Animals having cold blood are those that are unable to adjust their internal body temperature in response to environmental changes. They are unable to endure high temperatures. Reptiles, fish, and other cold-blooded creatures are examples.
Animals with warm blood were those that have the ability to control and maintain a consistent body temperature. They could readily adjust to just about any temperature range, allowing them to survive there. Rats were warm-blooded endothermic animals. As a result, a rat's physiological requirements would not be met by the physiology of such a perch (an exothermic as well as cold-blooded species).
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A political consequence of sustainability describes a change in the way people or businesses are governed. Which statement best describes a political consequence of sustainable waste management?
A. Businesses are penalized for improper waste clean-up.
B. Incinerators release fewer emissions into the atmosphere.
C. Transporting waste to other countries saves money for landfills.
D. Ecosystems are saved when less land is used for landfills.
The statement that best describes a political consequence of sustainable waste management is- Ecosystems are saved when less land is used for landfills.
What is sustainable waste management?
In order to decrease the amount of solid waste disposed of in landfills or by incineration, sustainable waste management tries to keep materials in use for as long as possible. To help lessen the detrimental environmental, social, and financial effects of 21st-century consumption, a more thorough approach to sustainable waste management must concentrate on the entire lifecycle of a product. However, in our current linear economy, waste starts even before products are manufactured.
A political consequence of sustainability develops the process of creating the circumstances in which the environment's quality can be preserved and enhanced and, as a result, contribute to sustainable development.
The sustainable waste management policy goals are:
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Which heart calves are open and which are closed when blood passes out of the right ventricle towards the lungs?
Answer:
When the left ventricle contracts, the right ventricle also contracts. This causes the pulmonary valve to open and the tricuspid valve to close. Blood flows out from the right ventricle to the lungs before it is returned to the left atrium as fresh, oxygenated blood.
Explanation:
Match each part of the cell with its function.
cell wall
cell membrane
cytoplasm
ribosome
fills the cell and protects the structures
inside it
produces proteins
gives the cell its shape
separates the inside of a cell from the
environment
Explain cellular respiration
Answer:
cellular respiration, the process by which organisms combine oxygen with foodstuff molecules, diverting the chemical energy in these substances into life-sustaining activities and discarding, as waste products, carbon dioxide and water.
Lynn Margulis developed the endosymbiont theory to explain the evolution of certain eukaryotic organelles, such as chloroplasts and mitochondria.
According to this theory, which of these events occurred to an ancient prokaryotic cell
One more prokaryotic cell from the past was ingested by the cell and started living there.
The correct answer is C
What are a prokaryotic cell's three main characteristics?An exterior layer called a plasma membrane divides the interior of a cell from its surroundings. the interior of a cell that is jelly-like and contains other cellular parts is called the cytoplasm. The genetic makeup of a cell is DNA.
Are prokaryotic cells DNA-based?A free-floating, typically circular chromosome that is not protected by a nuclear membrane is seen in prokaryotic organisms, including bacteria. The nucleoid, a part of the cell, is where the DNA merely resides. Only a plasma membrane and ribosomes are typically present in prokaryotic cells' narrow spectrum of organelles
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the correct question is :
Lynn Margulis developed the endosymbiont theory to explain the evolution of certain eukaryotic organelles, such as chloroplasts and mitochondria. According to this theory, which of these events occurred to an ancient prokaryotic cell? A. Mutations caused the cell's DNA to direct the synthesis of new organelles. B. The cell nucleus divided and changed to form other types of organelles. C. The cell took in another ancient prokaryotic cell, which began living inside it. D. The cell membrane divided and changed to form new types of organelles.
How did the accurrences of the different traits change over the 30-year period? Use euidence from the graph to support your answer. Using what you know about natural selection and adaptation, what generalization can you make based on these changes?
When changes occur to face environmental pressures, they must increase the individual's fitness to be favored by natural selection and result in adaptation. Between 1950 and 1980, individuals with half their bodies covered by plates decreased, while individuals with their whole bodies covered by plates increased.
How are adaptation and natural selection related?
Adaptations can be understood as the way in which different organisms manage to improve their fitness in the environment in which they live. To do it, they must adjust to the changes and selective pressures acting on them.
Adaptations involve changes and are usually related to mutations (let us remember that mutations are changes in DNA nucleotide sequences).
These changes must be beneficial for the individuals, meaning they must increase their fitness and make them more competitive.
If they do not increase their fitness (aptitude) they get lost.
If they increase the individual's fitness, they are selected by natural selection and transmitted through generations.
When natural selection favors a mutation, it sets it in the population and is inherited by the following generations. These mutations improve the individual's survival and reproductive rates. Hence, natural selection results in adaptation.
Image explanation
In the exposed example, we can see how the percentage of plates covering the animal's body changed through time.
At the beginning of the study (the year 1950), most animals had half of their bodies covered by plates (green bar), and only a few individuals had 2/3 bodies protected (orange bar).
As the lake changed its clarity, stickleback fishes with only half of their bodies protected got probably more exposed and easily seen by their predators. Their survival and reproductive rates decreased. From 1950 to the end of the study, their population size decreased significantly.
Predation acted as the environmental pressure. So the fish species needed to face this problem.
By 1960, a few individuals developed a new strategy. Their whole bodies were protected by plates (blue bar). This phenotype meant an increase in their survival and reproductive rates, so this strategy spread more in the population. Natural selection favored this change and set it.
By 1980 most individuals had their whole bodies protected by plates, and only a few of them still had half of their bodies covered. Since this turned out to be a beneficial change, population size started to recover.
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There is iron in Hawaiian rocks. What does the presence of Iron tell scientists?
According to Humayun's hypothesis, chemical reactions between rock and liquid metal at the Earth's core-mantle border are what caused the extra iron to enter the mantle.
How iron is found in Hawaiian rocks?According to research by Professor Munir Humayun, the Earth's mantle beneath Hawaii has a higher iron content than other parts of the mantle. Hot plumes of solid rock from the core-mantle barrier or the deep mantle rise at rates of a few centimeters per year to form hotspot islands, such as Hawaii.
Seismologists have long hypothesized that the deep mantle of the Earth, which is the rocky layer 1,000 to 3,000 kilometers below the Hawaiian Islands, has a higher percentage of iron, but no one has ever exactly tested it, according to Humayun. One of the four primary elements that make up the mantle is iron.
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A bacterial cell makes binary fission many times and 16 calls are produced during two hours.What is the time taken by one binary fission?
a)30 minutes
b)60 minutes
c)45 minutes
d)20 minutes
Answer: 20 minutes
Explanation: Binary fission is a very quick way to reproduce. Some bacteria are able to divide themselves up every 20 minutes. A billion bacteria can be produced in this way from one bacterium in just ten hours given the right conditions.
please help to fill in
In each ecosystem, there are many feeding relationships. A food chain represents a flow of energy through an ecosystem, and always begins with an organism called a producer, which is able to trap light energy and convert it to chemical energy. An organism of this type is eaten by a herbivore, which is a kind of consumer that feeds only on plant material. This type of organism is, in turn, eaten by a carnivore (an organism that consumes other animals).
When lactate builds up in a runner's muscles, it causes a burning sensation.
What causes this to occur?
A. The muscles are using alcohol fermentation to generate energy.
B. The muscles do not have enough oxygen for aerobic respiration.
C. The muscles are producing too much acetyl CoA.
D. The muscles have too much oxygen, causing the production of glucose
Anaerobic respiration - There is a lack of oxygen in the runner's muscles.
What is Anaerobic respiration?
Respiration is a chemical mechanism that occurs in all living cells and converts glucose into energy. Anaerobic respiration happens in the absence of oxygen and generates less energy but is faster than aerobic respiration. Fermentation is the term for microorganisms' anaerobic respiration.
The muscles do not have enough oxygen for aerobic respiration, therefore anaerobic respiration takes place causing a burning sensation in the runner's muscles. The word "anaerobic" means "without oxygen." There is no need for oxygen in this type of cellular respiration to produce energy. Smaller animals require energy to survive inside the absence of oxygen because there is not enough oxygen available for them to breathe.
Hence, (option B) is correct.
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Which of these is a source of food for plants?
A.
proteins found in animal tissues
B.
minerals dissolved in the soil
C.
water that falls from the atmosphere
D.
sugars made during photosynthesis
Answer:the answer is A
Explanation:
Which of the following is NOT an area of concern regarding the common type of waste management systems?
Responses
decomposition creates unsteady levels of energy
waste contains high levels of harmful bacteria
decomposition emits greenhouse gases
waste can end up in groundwater and lakes
The statement which is not an area of concern regarding the common type of waste management systems is decomposition creates unsteady levels of energy.
The first response is correct.
What is waste management?Waste management or waste disposal includes the processes and actions required to manage waste from its inception to its final disposal.
Waste management has impacts on the environment which we live. Poor waste management that ranges from non-existing collection systems to ineffective disposal causes air pollution, water and soil contamination.
Other types of waste like the open and unsanitary landfills contribute to contamination of drinking water and can cause infection and transmit diseases.
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Answer: The correct answer is decomposition creates unsteady levels of energy
Explanation: This answer has been confirmed correct.
There are no areas of concern related to energy output from decomposition.
A rock discovered near your home is known to be an igneous rock. The rock was formed as magma cooled inside the earth's crust. Is this rock an intrusive or extrusive igneous rock? Explain your answer.
Answer:
Intrusive Igneous rock.
Explanation:
Intrusive igneous is usually formed when magma is trapped deep inside the Earth. Afterwards molten rock rises toward the surface creating this
np :d
When two molecules of water are oxidized by PSII, how many total hydrogens are generated in the thylakoid lumen?
When two molecules of water are oxidized by PSII, the total hydrogens generated in the thylakoid lumen is 4 hydrogen ions.
What are molecules?A molecule is de scribed as a group of two or more atoms held together by attractive forces known as chemical bonds.
The light reactions of photosynthesis occur in photosystems I, PSI, and photosystems II, PSII present in the thylakoid membrane of the chloroplast.
In the light reactions of photosynthesis, water molecules are oxidized to oxygen and ATP molecules are produced which drives the dark reactions of photosynthesis.
Thylakoids lumen are membrane-bound compartments inside chloroplasts and cyanobacteria which are the site of the light-dependent reactions of photosynthesis.
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Mia is building a diorama showing the parts of an atom. She wants to better understand the effects of electric forces. An atom is made up of particles called protons, neutrons and electrons
The way dirt sticks to surfaces in our daily lives, such as clothing and walls, is a result of electrostatic forces on fine particle adhesion.
What is the effect of electric forces?Generally, when particle material is electrically insulating, so the electric charge may be kept, electrostatic forces become significant.
Two charges interact with one another to produce electrical forces. The electric force exerted on a single charge in scenarios involving three or more charges is simply the sum of the interactions between that charge and all other charges.
Therefore, Electric force strength is influenced by the electric charge on the particles, as well as their separation from one another.
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What do we call the cells in
phloem that are alive at
maturity, but lose almost all
of their organelles?
Tracheids
Sieve-tube this
Sieve elements are the phloem cells that are still alive when they reach adulthood but have essentially no organelles left.
Sieve elements are alive at maturity but lack some organelles, such as a nucleus, in comparison to tracheary elements, which have just primary cell walls (and consequently thicker overall cell walls).
Thin-walled cells called sieve elements typically don't have nuclei but are nonetheless alive at maturity despite having a significantly altered protoplast. .The primary walls of parenchyma cells are thin, and they typically continue to live after reaching maturity. The primary type of elongated photosynthate-conducting cell in vascular plants' phloem is known as a sieve element. Sieve regions, which are thinner, circular to elliptical portions of the wall, are present in the walls of sieve elements.
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examples and non examples of compound
Answer:
The main example of compound is water represented by the chemical formula H2O which indicates 2 atoms of hydrogen combines with 1 atom of oxygen, sodium chloride etc and non-compounds are those which does not combine with two elements like bromine molecule represented by Br2.
EXAMPLES
watercarbon dioxidetable saltNON EXAMPLE
brominesulphurSelect the correct answer. The energy entering this system is equal to the energy leaving the system. Based on the law of conservation of energy, how many units of energy are entering the system? Illustration of squared labeled system. The arrows on the right side line of the square and the bottom line of the square are pointing out with energy values 10 and 5 units. The arrow on the top line with question mark is facing into the square. A. 5 units B. 10 units C. 15 units D. 20 units
The units of energy entering and leaving the system total 15 units. (Option C)
Why do we have the above as the right answer?According to the rule of conservation of energy, "energy cannot be generated or destroyed; instead, it evolves from one form to another." Because you have not provided the given value, it is important to remember that the energy exiting the system equals the energy that entered the system.
In physics, energy is the quantitative quality that is imparted to a body or a physical system and is visible in the form of heat and light. The law of conservation of energy holds that energy can be transformed in form but cannot be generated or destroyed.
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Complete Question:
The energy entering the system is equal to the energy leaving the system. Based on the laws of conservation of energy, how many units of energy are entering the system?
5 units
10 units
15 units
20 units
Which of the following is
TRUE of the fertilization of
gymnosperms?
A. The seed is carried to a flower on another
tree and gets pollinated.
B. Multiple pollen grains can fertilize one
ovule at a time.
C. Gymnosperms are the only self-fertilizing
plants.
D. When the pollen sticks to the seed cone, a
pollen tube grows to connect it to the egg cell. This is answer
Answer:
Explanation: I just did this question a few mins ago
1. Why is electricity consider as our good friend
Answer:
Electricity is considered as our good friend because it is an essential part of modern . People use electricity for lighting, heating, cooling, and refrigeration and for operating appliances, computers, electronics, machinery, and public transportation systems.
4 organelos celulares comparados con objetos cotidianos
Four cell organelles in living cells are: mitochondria, nucleus, ribosomes and endoplasmic reticulum.
What is meant by mitochondria, nucleus and ribosome?The mitochondria refers to that organelle found in the cytoplasm which is regarded as the power house of cells.
The nucleus is the organelle in the cell where all cellular activities are controlledThe ribosomes are the sites of protein synthesis.That being said, a cell is defined as the structural, functional and basic unit of life.
So therefore, it can be deduced from the task above that ribosomes and mitochondria are some of the few organelles in the cells of living organisms.
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As a result of an action potential, AcH is released from the axon terminal and attaches to receptors on the motor end plate. Sodium rushes in the T-tubules and all the steps occur until the muscle contracts in the leg and carry out the command transported by the motor neuron. Which gray horn is the cell body of the motor neuron located? Infer and explain if this is a positive or negative feedback
1) The cell body of the motor neuron is located in the ventral or anterior horn of the grey matter. From there, it extends to the motor unit. 2) Contraction refers to negative feedback in which the body reacts when facing a stimulus.
What is the anatomy of the spinal cord?The spinal cord is mainly composed of grey matter and white matter. The second one covers the first one.
The grey matter transversal section is composed of posterior, lateral, and anterior horns, also known as dorsal, lateral, and ventral horns, respectively.
Each type of horn contains a type of neuron.
In the posterior/dorsal horns, we can find sensory neurons that provide sensory information.In the thoracic area, we can find lateral horns with visceral motor neurons.
In the anterior/ventral horns, we can find motor neurons that extend to the skeletal muscle, which is the motor unit, to produce movement.
The motor neuron from the exposed example is located in the anterior or ventral gray horn.
This example refers to negative feedback because the neurotransmitter release causes a cascade effect that ends in muscle contraction, tending to suppress or counter the original stimuli.
Any change that might occur in the internal functioning will be countered by negative feedback to maintain homeostasis.
Negative feedback needs receptors, central control, and effectors.
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Individuals of a population group together in clusters or groups. This is often found in schools of fish, patchy habitats, or trees with heavy seeds that drop directly to the ground.
A. Clumped
B. Random
D. Uniform
Answer: It is A
Explanation: It's A because clumped , individuals are clustered in groups
6) What is the inorganic compound that is included in the
structure of DNA building unit? ?
Ribose sugar.
Phosphate group.
Thymine base.
O Deoxyribose sugar.
Inorganic compound that is included in the structure of DNA building unit is Phosphate group
An inorganic compound is the substances that does not contain both carbon and hydrogen and a great many inorganic compounds do contain hydrogen atoms and such a water and hydrochloric acid produced by your stomach and the sugar in the DNA molecule id deoxyribose and the one RNA ribose sugar and this is the phosphates based on the inorganic compound phosphoric acid means H₃PO₄ and they react with the sugar in the nucleotides to form ester bond
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How does the process of crossing over improve biodiversity of a species?
Answer:
it gives us genetic variation
crossing over is where both parent cells mix to form unidentical daughter cells right, therefore when both genes mix, the offspring gets the mixture of both parents and that is genetic variation and it is also how you get biodiversity
look at the arrows pointing towards atmospheric CO2. what are two major sources of atmospheric carbon?
The two major sources of atmospheric carbon are the burning of fossil fuels and respiration by living organisms.
Sources of atmospheric carbonCarbon exists in the atmosphere mostly as carbon dioxide and carbon monoxide.
Atmospheric carbon dioxide sources include but are not limited to the burning of fossil fuels, oil, or natural gas, respiration by living organisms, volcanic activities, deforestation, mining, and so on.
The sources of atmospheric carbon monoxide include but are not limited to the burning of fossil fuels in engines, automobile vehicles, and other forms of engines that utilize fossil fuels for operation.
Carbon dioxide happens to be a major contributor to the warming of the planet. In other words, carbon dioxide is a major member of the greenhouse gases whose increased concentration in the atmosphere has been the cause of global warming and climate change that has been plaguing mankind.
Carbon monoxide, on the other hand, is poisonous to living organisms above a certain concentration threshold.
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