Answer:
Mitosis and Meiosis
How does cell division work?The cell that is dividing in a cell division process is referred to as the parent cell. Upon division, the parent cell produces two daughter cells. The next phase, known as the cell cycle, involves repeating the procedure.
Cells control their division by exchanging chemical signals via unique proteins called cyclins with one another. These signals function as switches that inform cells when to begin dividing and afterwards when to stop. For you to develop and for your wounds to heal, cells must divide. Cells must also cease dividing at the appropriate moment. Cancer can result from a cell's inability to stop dividing when it should, which is a condition known as cell division failure.
Now, how do cells divide?
There are two ways for cells to divide, depending on the type: mitosis and meiosis. Each of these strategies for cell division has unique qualities. A single cell splits into two identical cells with the same number of chromosomes during mitosis, which is one of the major distinctions between the two processes. Cell division of this kind is beneficial for fundamental development, repair, and maintenance. A cell divides into four cells during meiosis, each of which has half as many chromosomes. To promote genetic variety and sexual reproduction, the number of chromosomes must be cut in half.
Answer:
Mitosis and Meiosis
Explanation:
There are two types of cell division: mitosis and meiosis. Most of the time when people refer to “cell division,” they mean mitosis, the process of making new body cells.
identify two reasons why stress can influence weight gain?
Answer:
1. emotional eating or (stress eating)
2. Stress can cause cortisol which can lead to weight gain.
Explanation:
Answer: Two reasons why stress can influence weight gain:
1) In some cases having too much stress causes many people to eat or do I health things in order to forget about all that stress.
2) Having too much stress upon yourself causing that person’s emotions to change or get all mixed up causing many people to not care about the things that they cared about before due to all the stress that they had before.
*Hopefully this helped at least with a bit. Enjoy your day! ♥️*
A 29-year-old female develops sepsis and, as a consequence, she experiences profound
vasodilation.
a) What effect does vasodilation have on the afterload? Explain why.
b) What effect does vasodilation have on blood pressure? Explain why. How will her body try
to bring her blood pressure back to homeostasis?
Vasodilation have positive effects on the afterload and blood pressure.
What effect does vasodilation have on the afterload?Vasodilation have positive effects on the afterload because afterload goes down when aortic pressure and systemic vascular resistance decreases through vasodilation.
What effect does vasodilation have on blood pressure?Vasodilation is a mechanism which occurs in order to enhance blood flow to areas of the body that are lacking oxygen and nutrients. The vasodilation causes a decrease in systemic vascular resistance (SVR) and an increase in blood flow that results in reducing blood pressure.
How will her body try to bring her blood pressure back to homeostasis?Her body try to bring her blood pressure back to homeostasis by increasing width of the blood vessels.
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his nutrient is cycled between living things and the soil. Plants absorb this nutrient from the soil and turn it into organic compounds through assimilation. Animals eats the plants and pass the nutrient through the food chain from one organism to another. When the animal dies, it decomposes and returns the nutrient back to the soil. The nutrient can also enter the soil through weathering and erosion.
The nutrient is phosphorus
The phosphorus cyclePhosphorus cycles between living components of the earth (biosphere) and the soil (geosphere).
The element's reservoir is mainly the sediments of the ocean and rocks. Phosphorus gets into the soil by weathering of rocks.
Plants are able to pick the element up from the soil and animals are able to get their phosphorus by consuming plants.
When plants and animal die, their body decomposes and the phosphorus in them enters the soil.
Thus, the cycle being referred to in the illustration is the phosphorus cycle.
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Answer:
c,a,b
Explanation:
In which organizational level of life does natural selection occur?
A. Tissues
B. Ecosystems
C. Populations
D. Organisms
How is glucose different from glycogen?
Glucose is used immediately for energy in the cell while glycogen is stored in the liver for later use as energy.
Glucose and glycogen are both stored in the liver, but glucose is used first for energy, then glycogen.
Both are stored in the cell, but glucose is used first for energy, then glycogen.
Glucose is different from glycogen as Glucose is used immediately for energy in the cell while glycogen is stored in the liver for later use as energy. Thus, the correct option is A.
What is Glycogen?Glycogen may be defined as the reserved form of glucose that is constructed up of many interconnected glucose molecules.
When the cell needs immediate energy to accomplish metabolism, they directly use glucose for it, but while energy is not needed by the cell, then glucose is stored in the liver and muscles in the form of glycogen.
Therefore, Glucose is different from glycogen as Glucose is used immediately for energy in the cell while glycogen is stored in the liver for later use as energy. Thus, the correct option is A.
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define wetlands.please give me the answer
Answer:
Wetlands are areas where water covers the soil, or is
present either at or near the surface of the soil all year or
for varying periods of time during the year, including during
the growing season.
land consisting of marshes or swamps; saturated land.
Hello!
Wetlands can be defined as :
[tex]\fbox {Areas where water is present in the soil during all times of the year.}[/tex]
Which of the following describes rivers and streams?
A. separated into photic and aphotic zones of still water with large amount of vegetation and fish
B. located between aquatic and terrestrial environments and reduces flooding and filters water
C. filled with running water and don't allow the collection of algae, and are home to small crustaceans
D. collected water that is murky and home to insects, phytoplankton, and burrowing organisms
Filled with running water and do not allow the accumulation of algae, and are home to the small crustaceans that describe rivers and streams. So, the correct option is (C).
What are Wetlands?Wetlands are a type of area where water either completely covers the soil or is present at or near the soil surface throughout the year or at different times throughout the year during the growing season.
Water is cleaned by wetlands as they filter out sediment, other pollutants and even chemical pollutants. Wetland areas act as a filter and processing facility for excess nutrients that may leach away from agricultural and growth sites.
It is also referred to wetlands as the "kidneys of our watersheds". It functions as its own distinct ecosystem.
Thus, filled with running water and do not allow the accumulation of algae, and are home to the small crustaceans that describe rivers and streams. So, the correct option is (C).
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PLEASE HELP!! i need help with this for biology i’m desperate please
As per the demonstration of Griffith and Avery, it can be concluded that the given experiment finding supports hypothesis III, i.e. genetic material or transforming substance is DNA.
What is Genetic material?Genetic material may be defined as any substance found in the cells of plants, animals, microbial or other origins that hold genetic information and that departs it from one generation to the next.
In 1944, Avery and others concluded that the transforming material was pure DNA, not protein or RNA.
These investigators found that DNA extracted from a virulent strain of the bacterium Pneumococcus genetically transformed an avirulent strain of the organism into a virulent form.
Therefore, as per the demonstration of Griffith and Avery, it can be concluded that the given experiment finding supports hypothesis III, i.e. genetic material or transforming substance is DNA.
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industrialisation and urbanisation cause environmental imbalance why
Answer:
Because industrialization and urbanization often advance in an uncontrolled or unorganized way in developing countries, they can have destructive effects on the environment, particularly on basic ecosystems, wildlife habitat, and global biodiversity.
Patient was treated with autologous cd34+ hematopoietic stem and progenitor cells transduced ex Vivo with self inactivating lentiviral vector encoding human ada. I can't understand what it is saying at all.
The technique makes reference to a vector-based gene therapy in which the expression for a gene associated with Adenosine Deaminase Deficiency (ADA) is restored.
What is gene therapy?Gene therapy refers to the genetic engineering methodologies to correct the defective expression of certain genes.
Gene therapy is divided into methods that use viral vectors to incorporate the defective nucleic acid (in this case lentiviral vector) or non-based vectors (e.g. polysomes or polycations).
In conclusion, the technique is a vector-based gene therapy to restore Adenosine Deaminase Deficiency (ADA).
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Why would it be easier for a doctor to tell that someone has a viral infection when the virus is in the
lytic cycle?
Answer:
Diagnosis of Bacterial and Viral Infections
But your doctor may be able to determine the cause by listening to your medical history and doing a physical exam. If necessary, they also can order a blood or urine test to help confirm a diagnosis, or a "culture test" of tissue to identify bacteria or viruses.
A seed was discovered and, when planted, grew to be a large flowering plant.
A seed was discovered and, when planted, grew to be a large flowering plant because it belongs to angiosperm family.
What is angiosperm?Angiosperms are plants that produce flowers and seeds in fruits. They are the largest and most diverse group within the kingdom Plantae having about 300,000 species. Angiosperms represent about 80 percent of all plants.
So we can conclude that a seed was discovered and, when planted, grew to be a large flowering plant because it belongs to angiosperm family.
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The seed belongs to a plant in the angiosperm group.
What are angiosperms?Angiosperms are seed-producing, flowering plants.
Angiosperms are different from gymnosperms in that gymnosperms produce seeds that are not enclosed.
Angiosperms produce seeds that are enclosed in fruits.
Both angiosperms and gymnosperms belong to a group of plants known as Spermatophyta.
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Why do Earth’s crust remain the same size despite sea floor spreading?
A. Older rocks eventually disintegrate on the ocean floor.
B. As new rocks are formed along mid-ocean ridges, older rocks are pushed down deep into the Earth into ocean trenches.
C. Hot magma dissolves all the old rock near the eruption site.
D. None of these choices are correct.
Answer:
B. As new rocks are formed along mid-ocean ridges, older rocks are pushed down deep into the Earth into ocean trenches.
Why is the Earth not getting larger if the sea floor is slowly spreading?Mainly due to the Atlantic experiencing seabed expansion. The sea bottom is subducting, or moving underground, in the Pacific. This is how the Earth's tectonic plates and geological activities function. The top side of the mantle travels to the bottom at one end and to the top at the other, similar to a conveyor belt. This explains why there are volcanoes, why continents drift, and why our planet's surface is continually changing over the span of millions of years.
Therefore, the planet is not getting bigger because its surface is constantly recycling itself.
Help me with please
Explanation:
carbon and hydrogen .......
What is sampling error, and how can scientists reduce this type of error?
Sampling error is a kind of experimental error that occurs when statistical characteristics of a population are estimated from a sample.
For example, the difference between a population mean and a sample mean is referred to as sampling error.
Scientists can reduce sampling error by taking observations from population rather than just a subset of the population.
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Throughout the world countries are dumping their garbage in the oceans. This dumping has affected the fish and other aquatic organisms of the oceans. Many fishing industries have collapsed due to this extensive dumping. Which theory explains this scenario?
The theory that explains this scenario is the tragedy of the commons theory.
What is the tragedy of the common theory?It is an economic theory that explains how individual gains create a general problem in society at large.
When individuals pursue personal gains even at the expense of creating a general problem in society, it results in the tragedy of the common.
Indiscriminate dumping of garbage in the ocean by countries results in a general problem that affects the entire world vis a vis the collapse of many fishing industries.
Fishes represent a source of protein for man all over the world.
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What is it called when one hormone helps another have its full effect?
Answer:
it is called permissive interaction
Explanation:
Answer:
In endocrinology, permissiveness is a biochemical phenomenon in which the presence of one hormone is required in order for another hormone to exert its full effects on a target cell.If you were given a cube of modeling clay, how would you shape it to have the greatest surface area-to- volume ratio?
To have the greatest surface area to volume ratio, it would be best to flatten the clay and create numerous projections.
The quantity of surface area per unit volume of an object or collection of objects is known as the surface-area-to-volume ratio (also known as the surface-to-volume ratio or abbreviated as SA:V). A cell's volume increases proportionately more than its surface area as its size decreases. As a result, the surface area to volume ratio is higher for smaller objects. For cells, a high surface area to volume ratio is crucial. There is more plasma membrane compared to the interior of the cell when surface area exceeds volume. This makes it feasible for materials to be moved into, out of, and around the cell as effectively as possible.The fact that a surface area must be sufficient to hold the volume helps to explain why most cells are tiny in size.
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why is the reason a virus can't infect a plant? plants have cells too right? so why?
Virus are able to infect plants therefore the reason a virus can't infect plant is because it's not a plant virus.
What is plant viruses?These are viruses that are capable of infecting plant cells and causing a harmful effects on them. These viruses are however different from animal viruses.
Example of plant viruses include:
Potato virus and Cucumber mosaic virus.Therefore, the reason a virus can't infect plant is because it's not a plant virus.
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A virus can infect a plant, plants also have cells, and specific viruses can infect them.
What are plant viruses?The definition of plant viruses includes all species of the pathogen that must be housed in plant species in order to be able to develop and multiply. Sometimes these viruses can cause disease in their hosts, depending on the health status of the crops.
With this information, we can conclude that all species of the pathogen that must be housed in plant species to be able to develop and multiply are phytoviruses.
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Observations:
Record any observations about the cells you observed. What does the cell look like for each
stage? What is a distinguishing visible feature of each stage of the cell cycle?
Stages
Description of Cell
Interphase
Prophase
Metaphase
Anaphase
Telophase
Cytokinesis
how memory and forgetting affects students academic performances
Memory and forgetting make students' academic performances poor
Because they are overburdened by the demands of the classroom, kids with working memory issues frequently struggle academically. They forget important task information, don't follow directions, and don't finish exercises.
Learning depends on memory, but memory also depends on learning because the knowledge that is stored in one's memory serves as the foundation for associating new information. It is a symbiotic relationship that develops over the course of our lives.
The loss or alteration of knowledge that has already been encoded and stored in a person's long-term memory is known as forgetting or disremembering.
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2. How are the amino acids formed from the codon in Mutation #2 different from those
formed from the original codon pattern?
The amino acids formed from the codon in the Mutation are different from those formed from the original codon pattern, not because after the mutation the sequencing is changed, giving rise to different codons.
What is a DNA mutation?Mutations are abnormal changes in the DNA of a gene. The building blocks of DNA are called bases. The sequence of these bases determines the gene and its function. Mutations involve changes in the arrangement of the bases that make up a gene.
How many amino acids make up a codon?Degenerate/Redundancy: There are four nitrogenous bases that make up DNA and RNA. They are arranged in triplets, forming codons. Thus, there are 64 different codons that correspond to the twenty amino acids that make up proteins. Therefore, more than one codon corresponds to the same amino acid.
With this information, we can conclude that the amino acids formed from the codon in the Mutation are different from those formed from the original codon pattern, not because after the mutation the sequencing is changed, giving rise to different codons.
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Guinea pigs can produce differect coat colors, white, brown, and mixed white/brown (agouti). THe allele B is codominant with allel W (white coat). Cross an agouti colored Guinea pig with a brown Guinea pig. What are the odds of the offspring; 1/2 homozygous white, 1/2 heterozygous brown; 1/4 homozygous brown, 1/2 heterozygous agouti, 1/4 white; 1/2 heterozygous brown, 1/2 homozygous agouti; 1/2 homozygous brown, 1/2 heterozygous agouti.
In codominance, two alleles can be simultaneously expressed. The correct option is D. 1/2 homozygous brown (BB), 1/2 heterozygous agouti (BW).
What is codominance?Codominance is an inheritable pattern in which two alleles can be simultaneously expressed.
In these situations, heterozygous individuals can express two phenotypes, each of them coded by one allele.
Heterozygous individuals' phenotype is an additive expression of their parents' genes.
In the exposed example, coat color are white, brown and agouti (mixed).
Allele B codes for brownAllele W codes for whiteGenotype PhenotypeBB Brown
WW White
BW Agouti
Cross: Agouti pig with brown pig
Parentals) BW x BB
Gametes) B W B B
Punnett square) B W
B BB BW
B BB BW
F1) 50% of the progeny is expected to be homozygous BB and express brown coat color
50% of the progeny is expected to be heterozygous BW express agouti coat color
The correct option is then option D. 1/2 homozygous brown, 1/2 heterozygous agouti.
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How does recombination affect genetic variation in future generations?
.
What is the first step in transcription?
Complementary bases come in and pair with the old bases.
The original DNA strand is unzipped.
A new sugar-phosphate backbone is constructed.
Bases are proofread.
The first step in transcription is that the original DNA strand is unzipped. That is option B.
what is transcription?Transcription in genetics is defined as a way by which cells produce Ribonucleic acid from an existing Deoxyribonucleic acid sequence.
The first step of transcription is called initiation. This is when signals are sent to the DNA to unwind (unzipped) so the enzyme can read the bases in one of the DNA strands.
Therefore, during the first step in transcription, the original DNA strand is unzipped.
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I'm not good at this.Can someone solve this?
Answer:
While the adult carp prefer slow moving water, they look for high, fast moving water when laying eggs (spawning). They lay hundreds of thousands of eggs at a time, which means populations grow and spread quickly. Because of this, they can quickly out-compete native species, and put ecosystems in danger.Carp are also thought to lower water quality, which can kill off sensitive organisms like native freshwater mussels.Asian carp cause serious damage to the native fish populations in the lakes and rivers that they infest because they out-compete other fish (video, 1 min) for food and space. Carp are also thought to lower water quality, which can kill off sensitive organisms like native freshwater mussels.Ram gives his dog a piece of bread to eat. The dog picks it up and starts eating. Which of the following organ systems of the dog is active when it eats the bread?
1. digestive system
2.nervous system
3.skeletal system
A. only 1
B. only 1 and 2
C. only 1 and 3
D. all -1, 2 and 3
Answer:
D, all 3.
Explanation:
The nervous system sends a message to the nerves in the dog's bones (which are a part of the skeletal system) to pick up the food. The digestive system breaks down the food.
The organ systems of the dog that is activated when it eats the bread are the digestive, nervous, and skeletal system. Thus, the correct option is D, i.e. all of the above.
What is an Organ System?An organ system may be defined as a cluster of organs that work together to perform specific bodily functions significantly.
When a dog eats bread, the digestive system converts this piece of bread into simpler substances that are absorbed by the small intestine. This is the direct function of the organ system.
Apart from the digestive system, the nervous system sends the message through the impulse to the bones which are part of the skeletal system to grab the nutrients as well as energy for them.
Therefore, the correct for this question is D.
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The most common cause of this electrolyte imbalance is dehydration.
A person may experience an electrolyte imbalance if they get dehydrated or have too much water in their system. Vomiting is the most frequent cause of an electrolyte imbalance. diarrhea.
What function does the electrolyte serve in the body?When dissolved in water, chemicals known as electrolytes acquire a natural positive or negative electrical charge. They support your body's ability to control chemical processes and maintain the proper balance of fluids within and outside of your cells.
During strenuous activity, drink enough of water to prevent electrolyte imbalance. Eat an electrolyte-rich diet that is balanced. Avoid doing any strenuous outdoor exercise when it's hot outside.
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Jolana wants to know more about the role plants play in the carbon cycle. What can she infer from the diagram below?
A. Plants use carbon dioxide for photosynthesis and give off carbon dioxide when they perform cellular respiration.
B. Plants use sugars and water for photosynthesis and give off oxygen when they perform cellular respiration.
C. Plants take in carbon in the form of minerals through their roots and release it as water in the atmosphere.
D. Plants use oxygen for photosynthesis and give off oxygen when they perform cellular respiration.
20 kids in class 1 infected how many will be infected with disease out of 20 kids
Answer:
20:20=x:1
20/20=x/1
20=20x
20/20=20x/20
1=x