Answer:
Speed is directly proportional to position and inversely proportional to time.
Explanation:
Increase in speed means covering a larger distance in a small time
How does the chromosome number of daughter cells compare with the amount of chromosomes in parent cells?
Answer:
Mitosis creates two identical daughter cells that each contain the same number of chromosomes as their parent cell. In contrast, meiosis gives rise to four unique daughter cells, each of which has half the number of chromosomes as the parent cell.
Explanation:
catabolizing fatty acids by beta-oxidation results in the formation of what product?
The product formed during the catabolism of fatty acids by beta-oxidation is Acetyl-CoA. Beta-oxidation is the process by which fatty acids are broken down to generate energy. It takes place in the mitochondria of cells. During beta-oxidation, fatty acids undergo a series of reactions that result in the formation of Acetyl-CoA molecules.
Acetyl-CoA is a crucial intermediate in cellular metabolism and serves as a key player in the production of ATP, the main energy currency of the cell.
The process of beta-oxidation involves several steps. First, the fatty acid chain is activated by attaching Coenzyme A (CoA) to it, forming fatty acyl-CoA. Then, the fatty acid undergoes a series of four reactions: oxidation, hydration, oxidation, and thiolysis. These reactions occur repeatedly, breaking down the fatty acid chain into two-carbon units. For each cycle, one molecule of Acetyl-CoA is produced, along with reducing equivalents in the form of NADH and FADH2.
The Acetyl-CoA molecules generated through beta-oxidation can enter the citric acid cycle (also known as the Krebs cycle or TCA cycle) to further extract energy or be used for the synthesis of other molecules, such as ketone bodies. Overall, beta-oxidation plays a vital role in the breakdown of fatty acids to generate energy for various cellular processes.
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A whale has a calf and a bacteria replicates through cloning. Both of these are examples of
Answer:
Reproduction
Explanation:
Answer:
growth and development
Explanation:
i did the unit test and got this question correct but didnt get all the questions correct my grade was 84%
Why did the runner's muscle cells undergo fermentation during parts of the marathon?
(A) His body was lacking water to accept electrons.
(B) His body had excess glucose, so it could not use oxygen.
(C) His muscle cells did not have enough O2 for cellular respiration to occur.
(D) His muscle cells needed lactic acid.
The runner's muscle cells underwent fermentation during parts of the marathon because his muscle cells did not have enough O₂ for cellular respiration to occur; option C.
What is fermentation?Fermentation is the process by which sugar molecules are broken down in the absence of oxygen to produce energy for use by the cell.
Fermentation is a form of anaerobic respiration.
The products of fermentation vary depending on the organism.
In yeast and bacteria, the products of fermentation are alcohol and carbon dioxide, and then energy.
In higher organisms such as mammals, the products are lactic acid and energy.
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Explain how an organism's ability to survive and reproduce can affect the entire population
Answer:
The organism will pass on the traits to their offspring. If the offspring also has an increased chance of survival it will have a higher chance of passing on the traits. Over a long period of time the entire population can inherit this trait.
Explanation:
According to the theory of natural selection organisms with beneficial traits are more likely to survive to the reproductive stage and pass on the beneficial gene to their offspring. Natural selection selects beneficial traits.
Tadpoles must undergo a major metamorphosis to become frogs. This change includes reabsorption of the tail, growth of limbs, calcification of the skeleton, increase in rhodopsin in the eye, development of lungs, change in hemoglobin structure, and reformation of the gut from the long gut of an herbivore to the short gut of a carnivore. Amazingly, all of these changes are induced by triiodothyronine. What is the most likely explanation for such a wide array of effects of triiodothyronine
Answer:
The most likely explanation is that different body parts have different tissues which in turn have different thyroxine receptors. This leads to different signal transduction pathways.
Explanation:
The triiodothyronine absorption through different tissues lead to different signal transduction pathways.
Select the scientific factor that has most advanced livestock breeding.
A.fertilization
B.genetic testing
C.Immunizations
D.pesticides
E.weather studies
F.Irrigation
Cilia and flagella move...
A) In opposite directions of the cell membrane
B) When the bending of microtubules is powered by ATP
C) In the same direction of the cell membrane
D) When the contractions of the basal body triplets are powered by ATP
E)When the central pair of microtubules produce ATP
Answer:
A in opposite direction of the membrane
What is the purpose of apoptosis?
Answer:
It programs cells to self-destruct so that they can be recycled.
Answer:
Apoptosis is programmed cell death, it is used to destroy unwanted cells and to destroy damaged cells that cannot repair themselves. It also helps prevent cancer by causing cancerous cells to destroy themselves.
A steel bar has a mass of 80 kilograms and a density of 8,000 kilograms per cubic meter.
Calculate its volume.
Write your answer to the hundredths place.
Volume = Mass/density = 80/8000= 0.01 M³
hypothetical scenario: the population of alligator lizards has increased significantly over the past 5 years. what is one hypothesis that could tentatively explain why the population of alligator lizards increased?
According to the hypothesis, a proposition that might be suitable to give a flimsy defense for the rise in alligator lizard populations is that the faster growth rate of alligator lizards is presumably connected to advanced implicit food vacuity and advanced active body temperatures.
Rapacious northern alligator lizards eat justices, mealworms, spiders, and sometimes youthful mice as part of their diet. They get their moniker due of the alligator's scale pattern and bitsy legs
The niche of these lizards is a timber, substantially in rocky places where they can hide. Northern alligator lizards can live up to ten times, and they sometimes live indeed longer. occasionally people will keep this little reptile as a pet.
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Adipose cells release stored lipids into the blood as these lipids are then transported through the blood bound to or part of
Adipose cells release stored lipids into the blood as these lipids are then transported through the blood bound to proteins. This mechanism is called lipoprotein lipase activity.
The stored lipids released into the blood from adipose cells are transported by the following means:Through the Blood Stream: As adipose cells break down fats and release them into the bloodstream, the lipids are transported through the bloodstream to various tissues and organs. The lipids are transported in the bloodstream in the form of lipoproteins and free fatty acids.Bound to Proteins: Adipose cells release stored lipids into the blood, which are then transported through the bloodstream bound to proteins. This process is known as lipoprotein lipase activity and is the primary method for transporting fatty acids and cholesterol in the blood.Lipoprotein lipase is an enzyme that breaks down lipoproteins into their constituent parts, freeing the fatty acids and cholesterol. These free fatty acids and cholesterol molecules are then absorbed by the tissues and organs that need them.
Lipoprotein lipase activity is critical for maintaining proper lipid metabolism and preventing lipid-related diseases like atherosclerosis.So, the long answer to the question is: Adipose cells release stored lipids into the blood as these lipids are then transported through the blood bound to proteins. This process is known as lipoprotein lipase activity, which is essential for proper lipid metabolism and the prevention of lipid-related diseases. The lipids are transported through the bloodstream in the form of lipoproteins and free fatty acids. Lipoprotein lipase is an enzyme that breaks down lipoproteins into their constituent parts, freeing the fatty acids and cholesterol, which are then absorbed by the tissues and organs that require them.
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chlorophll absorbs what colors
Answer: Violet and orange
Explanation:
They absorb light of other wavelengths with less intensity.
Both mitochondria and chloroplast have about the same function as…
. animal cells.
. eukaryotic cells.
. prokaryotic cells.
Answer:
Prokaryotic cells.
Hope this helps :)
A true statement regarding atherosclerosis is which of the following? (Select all that apply.) Atherosclerosis obliterans occurs when the peripheral system of upper extremities are affected Atherosclerosis usually affects the coronary, cerebral, carotid, femoral arteries and the aorta. Atherosclerosis obliterans is used to describe atherosclerosis; the terms are interchangeable. Atherosclerosis is a result of medium and large arteries being occluded. Atherosclerosis is the dominant type of arteriosclerosis.
the basic functional unit of the nervous system is the neuron. glial cell. nerve. spinal cord. brain.
The neuron is the basic functional unit of the nervous system.
Like other cells, neurons have a cell body which is called soma. The soma contains the neuron's nucleus. Numerous proteins must be produced by neurons, and the majority of these proteins are also made in the soma. From the cell body, several processes emerge. These include a variety of brief, branching processes called dendrites and a distinct process called the axon that is usually longer than the dendrites. The functioning of the nervous system depends on networks of cooperating neurons because a single neuron is unable to accomplish very much on its own. Circuits that can analyze incoming information and execute a reaction are formed when individual neurons connect to one another to stimulate or inhibit one another's activity. Neuronal circuits can range in complexity from being made up of only a few neurons to more intricate neural networks.
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what part of the brain is the pineal gland located
Answer:
epithalamus
Explanation:
induction of pluripotent stem cells from mouse embryonic and adult fibroblast cultures by defined factors
Transfer of nuclear contents into oocytes or fusion with embryonic stem (ES) cells can reprogramme differentiated cells to an embryonic-like state.
Induced pluripotent stem cells be a valuable tool in science and medicine?A. Induced pluripotent stem cells can become any cell type in the body, but are from adults, avoiding the controversies associated with
embryonic stem cells
B. Induced pluripotent stem cells are the only type of stem cell that's truly pluripotent.
C. Induced pluripotent stem cells may become any cell type in the body, but are fraught with ethical questions over their use.
D. Induced pluripotent stem cells are derived from adult cells and therefore may have DNA abnormalities, allowing scientists to understand the effects of sun exposure or toxins on DNA.
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During cellular respiration, the bonds of food molecules are broken, so energy can be released to fuel other cellular processes. In order for this to occur, which of the following statements must be true? A. New compounds with lower-energy bonds must be formed when the high-energy bonds in food molecules are broken. B. The energy in the new compounds that are formed must be equal to the energy in the bonds of the food molecules. C. New compounds with higher-energy bonds must be formed when the low-energy bonds in food molecules are broken. D. The new compounds that are formed must be more complex than the food molecules that were broken down.
Answer:
A
Explanation:
it is easy it is a
Answer: New compounds with lower-energy bonds must be formed when the high-energy bonds in food molecules are broken.
.Diagrams depicting family relationships and phenotypes for a genetic disorder areA. linkage maps.B. pedigree charts C. genotype maps.D. Punnett squares.E. bell-shaped curves.
Diagrams depicting family relationships and phenotypes for a genetic disorder are pedigree charts. Here option B is the correct answer.
A pedigree chart is a diagram that depicts family relationships and the inheritance of a genetic disorder over several generations. It is used to trace the inheritance of a particular trait or disease within a family and can help to identify patterns of inheritance.
The chart typically includes symbols for males and females, as well as symbols to indicate the presence or absence of a particular trait or disorder. It also can indicate the genotype of the individual, whether they are carriers or affected by the disorder.
A linkage map is a diagram that shows the relative positions of genes on a chromosome, and the distance between them. A genotype map is a diagram that shows the genetic makeup of an organism.
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Why do smokers find it harder to give up smoking?
Answer:
Nicotine is the main addictive drug in tobacco that makes quitting so hard
Answer:
It is hard for them because that's what makes them feel better and that is what the want each time they are stressed or they can even smoke 20 times in a hour.
Explanation:
Hope i helped :)
a 4.00-kg object is moving east at 2.00 m/s when it collides with a 6.00-kg object that is initially at rest. after the collision the larger object moves east at 0.800 m/s.
After the collision, the smaller object moves east at 0.800 m/s.
The question provides information about a collision between a 4.00-kg object moving east at 2.00 m/s and a 6.00-kg object initially at rest. After the collision, the larger object moves east at 0.800 m/s.
To determine the final velocity of the smaller object, we can use the principle of conservation of momentum. According to this principle, the total momentum before the collision is equal to the total momentum after the collision.
The momentum of an object is given by the product of its mass and velocity.
Before the collision, the total momentum is (4.00 kg) * (2.00 m/s) = 8.00 kg⋅m/s.
After the collision, the larger object moves east at 0.800 m/s.
To find the final velocity of the smaller object, we can subtract the momentum of the larger object from the total momentum and divide by the mass of the smaller object.
The momentum of the larger object is (6.00 kg) * (0.800 m/s) = 4.80 kg⋅m/s.
The momentum of the smaller object can be calculated by subtracting the momentum of the larger object from the total momentum: 8.00 kg⋅m/s - 4.80 kg⋅m/s = 3.20 kg⋅m/s.
Finally, we can find the final velocity of the smaller object by dividing its momentum by its mass: (3.20 kg⋅m/s) / (4.00 kg) = 0.800 m/s.
Therefore, after the collision, the smaller object moves east at 0.800 m/s.
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Jill takes her children to play in the park every afternoon. she notices that since the city changed their landscaping service, the pond in the center of the park is now covered with algae. what is the most probable cause?
Excessive application of fertilizer
The reason for the pond in the center of the park to now be covered with algae is the excessive application of fertilizer.
A plant can really die from too much fertilizer, and excess fertilizer can cause toxic algal blooms in lakes and streams that are dangerous to people and their pets as well as other aquatic life. Aquatic "dead zones" are also a result of excessive fertilizer runoff from agricultural and lawn applications in coastal areas.What consequences might excessive fertilizer use have?By increasing the soil's salt concentration, excessive fertilizer changes the soil and might harm beneficial soil microbes. Over-fertilization can result in abrupt plant growth with insufficient roots to provide the plant with enough water and nutrients.Can plants bounce back after excessive fertilizing?A few straightforward procedures can save the majority of over fertilized plants. Remove any fertilizer that is readily visible from the soil and plant, and let water pass through the roots to leach the fertilizer away. After that, take out any damaged foliage and give your plant another meal after about a month.
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Please help!
Parent 1 doesn't have freckles, but his parents did. Parent 2 has freckles, all of parent 2 family has freckles as well. Use the letters provided in the Punnett square to answer the following questions:
What is the genotype of parent 1?
What is the genotype of parent 2?
What is the probability that the offspring of parent 1 and parent 2 has the recessive alleles be expressed in their phenotype? __% (use numbers only)
Answer:
denoting No freckles: N Freckles: f,
parent 1 genotype: Nf
parent 2 genotype: ff
after using punnet Square the four random combinations are:
Nf, Nf, ff, ff
50% probability that offspring will have freckles
Answer: Genotype of parent 1: Aa
Genotype of parent 2: aa
Probability: 50%
Explanation: The Punnet square is shown in the problem to help you :) Also, these answers are correct because I got these all right on my science quiz just recently!
In plant cells, what
structures contain
DNA?
A. nucleus,
and central vacuole
mitochondria,
B. nucleus, mitochondria,
and chloroplasts
C. nucleus, mitochondria,
and rough ER
D. nucleus, mitochondria,
and smooth ER
Answer:
The answer towards your question would be B.
B. nucleus, mitochondria and chloroplasts.
Explanation:
To explain it, the reason is because Nucleus is the one which contains DNA and only mitochondria and chloroplasts are the other ones which also contain DNA as their genetic material. Although, all living organisms do use deoxyribonucleic acid (DNA) including plants. The DNA in plant cells is found only in the nucleus, the mitochondria and the chloroplasts.
12. Microwaves are one type of
Select from the drop-down menu to correctly complete the statement.
If an organism is composed of only one cell, it
A-performs all of the functions.
B-does not have any functions
C-cannot survive on it's own
D-is specialized.
Answer:
A - performs all of the functions
write any four difference between homologous and vestigial organs.
Homologous structures are anatomical structures that are comparable to one another and have been passed down from a common ancestor, whereas vestigial structures are anatomical structures that have shrunk in size because they are no longer needed.
What are homologous and similar structures different in four ways?Homologous structures are those with different roles but comparable anatomy, morphology, embryology, and genetics. Analogous structures are those that perform the same function while having anatomically distinct surfaces.The classic example of homologous structures are the bones of limbs in vertebrate animals. A structure that has atrophied and is no longer helpful is said to be vestigial.The bones of an animal's limbs are a prime example of homologous structures. A structure that has atrophied and is no longer useful is said to be vestige.Here are a few instances of homology: Homologous structures include the human arm, a bird or bat's wing, a dog's leg, a dolphin or whale's flipper, and the wing of a bird or a bat. They are distinct and serve different purposes, although they are comparable and have similar characteristics.To Learn more About Anatomical structures, Refer:
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How did Hershey and Chase prove that DNA is the genetic material?
Bacteriophages (viruses that infect bacteria) were important to Hershey and Chase's experiment, which demonstrated that DNA is the genetic material.
Hershey and Chase demonstrated that when bacteriophages, which are made up of DNA and protein, infect bacteria, the DNA enters but the majority of the protein does not. Hershey and Chase, as well as other findings, all contributed to the conclusion that DNA is the hereditary material. The Hershey-Chase studies, undertaken in 1952 by Alfred Hershey and Martha Chase, helped to prove that DNA represents genetic material.
While biologists had known about DNA since 1869, many scientists still concluded that proteins contained the information for heredity at the time since DNA looked to be an inert molecule and, because it is situated in the nucleus, its purpose was thought to be phosphate storage.
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Why would two different species have similar features or behaviours
A.) similar DNA
B.) different time periods
C.) similar environmental pressures
Two different species have similar features or behaviors because of the similar environmental pressures that is present in option C. Many species that live in a similar environment show similar behavior.
What is an environment?In the environment, there are different types of species, such as dog species, cat species, etc., and all of them are different from each other. They have different genes in their DNA, but as they live in a particular environment and face similar environmental pressures, they show similar behavior patterns.
Hence, two different species have similar features or behaviors because of the similar environmental pressures that is present in option C.
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