Final answer:
Meiosis is the division of the nucleus in reproductive cells that produces haploid cells, crucial for sexual reproduction, resulting in four genetically unique daughter cells.
Explanation:
The division of the nucleus in reproductive cells is called meiosis. This process is crucial in the production of haploid cells as part of the sexual reproductive cycle. Unlike mitosis, which results in the formation of two genetically identical daughter cells, meiosis includes one round of chromosome duplication followed by two rounds of nuclear division. These divisions result in four genetically different daughter nuclei, each with half the number of chromosomes of the parent cell. During this process, important events including pairing and crossing over of homologous chromosomes occur, particularly during meiosis I. This leads to genetic diversity in the resultant sex cells, or gametes.
Meiosis consists of two distinct phases: meiosis I and meiosis II. Meiosis I includes stages such as prophase I, during which crossover and recombination occur. Meiosis II is more akin to mitosis, but without replicating the DNA again, and results in the final four haploid cells. These nuclear division processes are crucial to sexual reproduction and biological diversity.
What is the cut called when the venison loin is left attached to the backbone?
Cardiovascular exercise _____. utilizes large muscle groups does not burn many calories increases your flexibility greatly increases muscle strength
Which of the following statements is true? Rainforest vines grow up trees to reach the upper canopy. This is an example of light competition. Biologists believe that true parasitism in nature is very rare because not all hosts are harmed by the parasite. A tapeworm living in the small intestine of a human is an example of an ectoparasite. Mutualism is the most important symbiotic relationships for evolution because both organisms must learn to work together.
Answer:
Rainforest vines grow up trees to reach the upper canopy. This is an example of light competition.
Explanation:
Competition among plants is often refered to when plants are competing for resources, from water, to nutrients or light, this types of competition are often seeing in plants and examples of this are commonly found from plants with larger, deeper roots to plants with higher and higher canopies, trying to defeat other tall plants on the search for sun light.
Why do scientists use Linnaeus’ system of binomial nomenclature for naming organisms
Answer:
for plato users, the answer is: It gives each different type of organism just one scientific name.
which of the following is an example a pseudo science? (choose two) a.biology b. astrology c. chemistry d.physics f. medicine
Answer:
The correct answer will be options-astrology and medicine
Explanation:
Pseudo-science is the practice of the science which is based on the belief system and lack evidence.
The pseudo-science practices cannot be scientifically tested as they lack evidence and verified as they are based on the belief system. They are based on the philosophical system like religious practice and many others.
The practice of astrology is based on the predictions which show the relation of an individual to the celestial bodies and the practice of homoeopathy in medicine which is not based on the evidence but on the belief system.
Thus, options-astrology and medicine are the correct answer
How is starch broken down to glucose prior to glycolysis?
The use of nuclear energy can have both positive and negative consequences. Which of the following is a positive consequence of using nuclear energy?
a.
Nuclear energy uses nonrenewable resources.
b.
Nuclear energy produces little air pollution.
c.
Uranium ore used for nuclear power plants must be mined and processed.
d.
Nuclear energy has no environmental impact.
Answer: b.
Nuclear energy produces little air pollution.
Explanation:
Nuclear energy is the energy which is obtain from the nucleus of an atom. It can be obtain by continuous and simultaneous fission and fusion reactions. The energy is produced in the form of thermal energy. The heavy metal atom is bombarded with radiation to cause either fusion or fission. The thermal energy produced is used for the purpose of generation of electricity.
This kind of energy generation takes place in a controlled condition. As if the radiations generated in the process and the thermal energy can cause damage to the surrounding environment if get leaked. As the thermal energy and the gases produced does not release into the surrounding environment. Hence, this type of energy produces little air pollution.
With a new baby, your sleep has been interrupted so frequently that you have been deprived of rem sleep for several days. how might this affect you?
Lack of REM sleep can lead to cognitive and emotional difficulties like memory trouble and mood swings, and in extreme cases can contribute to hallucinations or aspects of psychosis. Physical health may also be affected as it's the time for tissue repair and immune system boosting.
Explanation:Being deprived of REM sleep for several days can have multiple effects on you. REM sleep is a deep phase of sleep where most dreaming occurs and it is thought to play a role in learning, memory, and mood regulation. Lack of this sleep can result to cognitive and emotional issues. It might lead to memory trouble, difficulty concentrating, mood swings, or even depression. In extreme cases, REM sleep deprivation can contribute to hallucinations or other aspects of psychosis. Also, your physical health may be affected, because during REM sleep your body has the time to repair tissues and cells, and to boost the immune system. Therefore, significant lack of REM sleep may also leave you more prone to illnesses.
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A victim of a physical assault who relives the event repeatedly in his or her mind may be suffering from
The process by which molecules such as oxygen are moved into cells along their concentration gradient directly through the cell membrane is called
anaerobic respiration converts glucose into energy and by-products like ethanol carbon dioxide or lactic acid this is possible because carbon can
Answer:
be burned to produce oxygen and energy for cells
Explanation:
The loss of an embryo or fetus during the first 20 weeks of pregnancy is referred to as a miscarriage or __________.
Answer:
The loss of an embryo or fetus during the first 20 weeks of pregnancy is referred to as a miscarriage or __________.
spontaneous abortion.
Explanation:
A miscarriage or spontaneous abortion is the loss of a fetus inside the first 20 weeks of pregnancy. It is called that because the women have not developed the rights conditions to carry the fetus into its final stage. The majority of miscarriages happen in the first 12 weeks of pregnancy and they are due to age, substance influence, diabetes, and thyroid problems. Which develop in most of the cases chromosomal abnormalities.
If you were a scientist examining the DNA sequence of two known organism that you hypothesize share a common ancestor, what evidence would you expect find?
Based on the pyramid, which organism(s) provide the MOST available energy?
Which lens is closest to the object that you are viewing?
A. ocular lens
B. objective lens
How does the rate of extinction compare to the rate of species formation on earth today?
The rate of extinction is faster.
Salts (such as halite) that are left behind when water evaporates are called:
If we assume that, in the African savanna, the predator population remains constant, what other, nonmobile, factor would influence the antelope population? A) human presence B) other antelope C) available grass D) competition from zebra
its C , i took the testt trustt
What is the function of the lysosome in eukaryotic cells?
The lysosome uses messenger RNA to synthesize proteins.
The lysosome secretes enzymes to break down large molecules.
The lysosome modifies proteins and sends them to where they are needed.
The lysosome takes in nutrients and breaks them down to provide energy for the cell.
The function of the lysosome in eukaryotic cells is as follows:
The lysosome secretes enzymes to break down large molecules.Thus, the correct option for this question is B.
What are Lysosomes?Lysosomes may be defined as a type of membrane-bound cell organelle that contains numerous enzymes in order to break down complex organic materials. These enzymes are significantly made by rough ER.
Lysosomes are absent in RBCs, and few plant cells, yeast, fungi, blue-green algae, etc. Lysosomes destroy any foreign material inside the cell such as bacteria.
Lysosomes contain about 40 digestive enzymes. If the cell damages the lysosomes burst and their enzymes digest their own cell so they are known as the su*c*dal bag of the cell. These cell organelles also eliminate poorly working cellular organisms by digesting them.
Therefore, the correct option for this question is B.
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The cells that make up muscle tissues are highly specialized for the process of
The cells that make up muscle tissue are highly specialized for the process of producing the process or way of contracting or contraction in which this is vital with the muscles in order to produce contraction when having to move or flex specific types or parts of the body.
true or false Mechanical weathering is more rapid in warm, wet climates
The answer to the question is False
The given statement is False
Mechanical weathering is the process by which the large rocks are broken down into small ones. This process takes place near the surface of the planet. The hot days and cold nights also plays a major role in mechanical weathering. Rocks and plants also push the rocks and break them. The mechanical weathering is more frequent in cold climates; this is because the sunny day and the frozen nights help in contraction and relaxation of rocks those lads to mechanical weathering.
Which of these endocrine glands is located just above a kidney?
Answer:
it's the adrenal gland :)
Explanation:
The process by which heavy nuclei gain stability, and therefore release energy, by fragmenting into two midsized nuclei is called
Why might a seat in the senate be more attractive to a candidate than a seat in the house?
A Senate seat may be more attractive to candidates than a House seat due to longer terms, fewer members, statewide representation, influence in confirming appointments, a higher profile, and involvement in foreign policy, offering a broader and more influential platform.
A seat in the Senate may be more attractive to a candidate than a seat in the House of Representatives for several reasons:
1. Longer Terms: Senators serve six-year terms, while members of the House serve two-year terms. Longer terms can provide greater stability and allow senators more time to focus on their legislative priorities without the constant pressure of re-election.
2. Fewer Members: The Senate has 100 members, whereas the House has 435 members. With a smaller body, senators may have more individual influence and opportunities for leadership positions.
3. Statewide Representation: Senators represent an entire state, which can provide a broader platform and the chance to address statewide issues, while House members represent smaller congressional districts.
4. Advise and Consent: The Senate has the power to confirm or reject presidential nominations for executive and judicial positions, providing senators with a role in shaping the federal government's direction.
5. Higher Profile: The Senate often attracts more media attention and is seen as a higher-profile legislative body, which can be appealing to candidates seeking a more prominent role in the national political landscape.
6. Foreign Policy: The Senate plays a significant role in foreign policy and international treaties, which can be an attractive prospect for candidates interested in global affairs.
While the attractiveness of a Senate seat may vary for individual candidates based on their goals and priorities, these factors can make Senate positions more appealing to certain candidates compared to House seats.
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Where in the body does perceptual adaptation occur - the eye of the brain?
Perceptual adaptation occurs in the brain, not the eye. The brain can adapt to changes in sensory input and adjust its processing accordingly, such as when walking from a brightly lit area to a dark room.
Explanation:Perceptual adaptation occurs in the brain, not the eye. The process involves the brain's ability to adapt to changes in the sensory environment and adjust how it processes sensory information, such as sight.
For example, when you walk from a brightly lit environment into a dark room, the eye's function remains the same. However, it's the brain that adjusts to the reduced light level, making it possible to see in the darker environment.
Hence, it's clear that perceptual adaptation is a function of the brain as it interprets and adapts to changes in sensory inputs.
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What is the job of the arrector pili muscle how is this related to the phenomenon called goosebumps?
What change to the following molecule's structure would result in a saturated fat? Image represents an unsaturated fatty acid molecule composed of a carboxyl group (-COOH) that is single bonded to a chain carbon, mostly in the form of methylene groups (CH2) single bonded to each other. Interrupting the chain of methylene groups is a pair of double bonded carbons with one less hydrogen each. This double bond creates a bend in the molecule. It needs to lose a hydrogen atom and form a double bond between hydrogens. It needs to lose a hydrogen atom and form another double bond between carbons. It needs to gain a hydrogen atom to eliminate the double bond between the carbon and oxygen. It needs to gain a hydrogen atom to eliminate the double bond between the two carbons.
Answer:
the answer is c
Explanation:
i just took the test :3
The disease rabies is caused by a virus that attacks the central nervous system. the virus is normally introduced by an animal bite that breaks the surface of the skin. since the virus is not motile, how does it travel to the central nervous system
The rabies virus, attaches itself to the cells so they are transported through the body.
What are the effects of rabies virus infection?Rabies is a preventable viral disease most often transmitted through the bite of a rabid animal. The rabies virus infects the central nervous system of mammals, ultimately causing disease in the brain and death.
Once clinical signs of rabies appear, the disease is nearly always fatal, and treatment is typically supportive. Less than 20 cases of human survival from clinical rabies have been documented. Only a few survivors had no history of pre- or postexposure prophylaxis.
Rabies is usually spread through an animal bite. Animals most likely to spread rabies include dogs, bats, coyotes, foxes, skunks, and raccoons.
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The lymph system is a network of small vessels and organs that includes _____.
Answer:
lymph nodes
Is your Answer
Explain why the scientific method may not follow the exact same steps each time through the process.
The scientific method is the process used by scientists in the study of phenomena, in order to arrive at a reliable knowledge of the laws that govern them. The investigation in the context of science is done with specific and clearly defined procedures, which constitute the scientific method.
Thus, the scientific method uses a series of structured steps in order to reach said knowledge, moving from a first approximation to the subsequent hypothesis, the verification tests and a possible law that makes the knowledge acquired through a pattern effective.
Now, these systems of the scientific method are not always the same, but vary according to the specific needs of each question investigated, as science is a very broad field of study where each investigation covers very different questions from each other, with which the investigations will also be.
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