Answer:
The negative feedback mechanism is a reaction that causes a decrease in function inside a human's body and reduces the fluctuations in the output.
Explanation:
Which of the following is required of a new drug?
A. It must bind to a virus.
B. It must be in liquid form.
C. It must be easy to swallow.
D. It must help cure a disease.
Answer:
D. It must help cure a disease
Hope that helps!
Explanation:
It must help cure a disease. For a new drug to be approved by regulatory agencies such as the FDA (Food and Drug Administration), it must undergo rigorous testing to demonstrate its safety and efficacy in treating a specific disease or condition. Hence option D is correct.
What is a drug?A drug is a substance that has a physiological effect when ingested or otherwise introduced into the body. Drugs can be used for a variety of purposes, including treating or preventing disease, managing symptoms, altering mood or consciousness, or enhancing physical or cognitive performance.
The drug must also be shown to have a favorable benefit-to-risk profile, meaning that its potential benefits outweigh any potential risks or side effects. The drug's mechanism of action, or how it works in the body, is also an important consideration in the approval process.
While a drug may bind to a virus, be in liquid form, or be easy to swallow, these characteristics alone do not make a drug effective in treating a disease.
The ultimate goal of drug development is to find treatments that can help cure, prevent, or manage illnesses, so efficacy and safety are the most important factors in determining whether a new drug will be approved for use.
Hence option D is correct.
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Provide one example of an adaption that a herbivore has to prevent itself from being eaten. Use a specific example.
Answer:
horses have long, strong legs that allow them to run from predators.
Density-dependent factors affect:
•larger populations more because resources are already stretched thin.
•larger populations more because predators are a major concern.
•smaller populations more because there is a greater chance of wiping out the entire population.
•smaller populations more because they tend to be upper-level predators.
Answer:
The third is correct
Explanation:
Usually, a small population like rabbits can be hunted down and eaten by predators like a fox or foxes, and eventually, the fox or all of the foxes will kill the population of rabbits to extinction.
Which best defines the population growth rate?
A. a. (birth rate + immigration) - (death rate + emigration)
B.(birth rate + fertility rate) - (death rate )
C.birth rate - death rate
Answer:
A a(birth rate+immigration)-(death rate)
A. (birth rate + immigration) - (death rate + emigration) best defines the population growth.
What is population growth?Population expansion is the term used to describe the increase in human population. Most of human history was marked by a rather stable population. However, innovation and industrialization made energy, food, water, and medical care more reliable and accessible.
The human population has grown dramatically over the last century. It has mostly accomplished this by producing copious amounts of food and figuring out how to deal with sickness. There may have been only a million people on the planet when mankind first developed agriculture ten thousand years ago.
Despite the fact that every demographic pyramid is different, most fall into one of three categories: expansive (young and rising), constrictive (elderly and shrinking), or stagnant (little or no population growth).
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A?
B?
C?
D?
E?
Who helps me plz?
Answer:
A [ not sure !]
Explanation:
The soil that provides nutrients for vegetation in ecosystems is also affected by deforestation. ... Some of the carbon dioxide released into the atmosphere comes from dead vegetation that decomposes in the ground. In heavily deforested areas, soil erosion and nutrient runoff are common after a rainfall.
If your phenotype is free earlobes and free earlobes is dominant what is your genotype
Answer:
ff
Explanation:
hope this help
The technology in this picture produces which energy conversion?
Answer:
D
The reason that its d is because if theres a water generator in the dam then it requires the water to move the generator which converts it to electricity
Explain in detail the life cycle of the metamorphosis of amphibians.
Amphibians, like frogs and newts, have a slightly more complicated life cycle. They undergo a metamorphosis (a big change): they are born (either alive from their mother or hatched from eggs)
An organism's traits are controlled by alleles it inherits from Its parents. Some alleles are dominant
while others are
hybrid.
recessive.
genomic.
sex-linked.
10. Define immunity, and distinguish between active and passive immunity. this should be 150 words. I will mark as BRIANILIST. thank you.
Answer:
Immunity is the balanced state of multicellular organisms having adequate biological defenses to fight infection, disease, or another unwanted biological invasion, while having adequate tolerance to avoid allergy and autoimmune diseases. Each part of the immune system has a unique function. Also, the immune system is responsible for down-regulating immune responses against external harmless triggers such as food, or against the bodies' tissue. Active immunization is the induction of immunity after exposure to an antigen. Antibodies are created by the recipient and may be stored permanently. Naturally acquired active immunity occurs when the person is exposed to a live pathogen, develops the disease, and becomes immune as a result of the primary immune response. And passive immunity is the transfer of active humoral immunity of ready-made antibodies. Passive immunity can occur naturally when maternal antibodies are transferred to the fetus through the placenta. Passive immunity refers to the transfer of antibodies from one individual to another.
Predict how a loss of function mutation in the p53 gene is most likely to affect the cell cycle in response to DNA damage. Justify your predictions.
Answer:
The cell cycle of cell multiplication is regulated by three types of genes, the regulatory genes that control mutations, the generic promoters of cell replication, and genes that inhibit cell replication.
The balance between these three types of gene group are what result in a good multiplication of cells without mutations or neoplastic developments.
The p53 gene is one of the genes that is considered as the guardians of the genome, since it is in charge of corroborating and regulating mutated cells, in this way it inhibits their progression in the cell cycle by putting a stop to not replicate defective genes or genes with alterations.
Explanation:
The p53 gene is one of the most altered genes seen in malignant neoplasms, since by altering our guardian of the genome many mutations overlook and more carcinogenic potential will have neoplastic tissue.
In the three groups of genes that we write, all three have a fundamental roll in the cell cycle, but in order to trigger malignant neoplasms, it is necessary that there be a continuous series of gene mutations in these three groups, it is not enough with the mutation of a single gen.
Type the correct answer in the box. Spell all words correctly.
Which age pyramid has the largest base of pre-reproductive population?
pyramid has the largest base of pre-reproductive population.
Reset
Reset
Next
Next
Answer: By looking at all the age population pyramids, this would be my best guess. Every territory is different with various populations, however, to the best of my knowledge, it would be the expansive pyramid.
Explanation: Expansive population pyramids are used to describe populations that are young and growing. They are often characterized by their typical ‘pyramid’ shape, which has a broad base and narrow top. Expansive population pyramids show a larger percentage of the population in the younger age cohorts, usually with each age cohort smaller in size than the one below it. These types of populations are typically representative of developing nations, whose populations often have high fertility rates and lower than average life expectancies.
Zoe drew a diagram to compare monotreme and marsupial
mammals.
Which label belongs in the area marked Z?
gestation period lasting several months
o includes spiny anteaters
O offspring develop in pouch
O females lay eggs
Answer: Its c offspring develope in pouch.
Explanation:
I took the test
Answer:
offspring develop in pouch
Explanation:
Some single-celled organisms make copies of themselves through mitosis. Which decribes the function of the cell cycle in such single-celled organisms?
reproduction
repair
growth
protection
Answer:
The answer is A
Explanation:
Answer:a
Explanation: i just took the test
How would permeability change if types of channels in a neuron change?
Answer:
Explanation:
How the resting membrane potential is established in a neuron. ... Ions move down their gradients via channels, leading to a separation of charge that ... through brief, controlled changes in the permeability of their cell membrane to particular ... If you did this, you would measure an electrical potential difference, or voltage, ...
Membrane permeability is affected by temperature, the type of solute present, and the degree of cell hydration. Increasing the temperature makes the membrane more unstable and very fluid. Lowering the temperature slows the speed of the membrane.
Does the permeability change during the action potential?Action potentials, the main electrical signal produced by nerve cells, reflect changes in membrane permeability to specific ions.
The important point is that increasing Na + permeability causes more depolarization, resulting in the opening of more Na + channels and further depolarization of the membrane potential.
Membrane permeability to water and solute has been shown to depend on temperature, the osmotic pressure of the medium, the type of solute present, the degree of cell hydration, and the presence or absence of ice.
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How many Coronavirus strains are in the World and tell me 3 Names of the strains
Answer: The 3 The names of them are
MERS-CoV, (MERS)
SARS-CoV, (SARS)
SARS-CoV-2
Directions. Choose TWO organisms below. Determine the likelihood of all the possible
offspring of the organisms chosen. Explain your answer.
Organism #1 Genotype Bb
Organism #2 Genotype Bb
Organism #3Genotype. bb
Reproduction type: Sexual
Reproduction type: Sexual
Reproduction type: Sexual
Type your response below
Directions Choose TWO organisms below. Determine the likelihood of all the possible
offspring of the organisms chosen. Explain your answer.
Organism #1 Genotype HH
Organism #2 Genotype: Hh
Organism #3 Genotype: hh
Reproduction type: Asexual
Reproduction type Asexual
Reproduction type Asexual
Type your response below
Answer:ghjhjjhvvvjohvjb
Explanation:
What is currently happening with Mount Etna?
Answer:
As Italy’s National Institute of Geophysics and Volcanology (INGV) explains on a recent blog post, the nascent eruption began on the night of May 29. Starting off by producing a thick column of ash rising from the New Southeast Crater, it gave way on May 30 to a far more lava-heavy display in the area, featuring two fissures blenching out lava.
Answer:
There is currently no eruptive activity at the volcano involving fresh lava and monitoring signals do not suggest an immediate change likely; only a weak thermal anomaly continues to be present from the southeast crater complex.
Explanation:
A student examines a sample of pond water under a microscope and observes a single-celled heterotrophic eukaryote swimming through the water. To which of the following Kingdoms does this organism most likely belong?
Protista
Fungi
Plantae
Bacteria
Answer:
The answer is C. Plantae
Plantae is a taxonomic group that includes land plants and green algae.
The kingdom that does this organism most likely belongs to the Fungi. Thus, the correct option for this question is B.
What are Eukaryotes?Eukaryotes may be defined as the type of organisms that have a well-defined nucleus and other membrane-bound cell organelles in their cells. These types of organisms have compartmentalization which facilitates each and every specific function.
According to the context of this question, only fungi are the only organisms that are single-celled eukaryotes that are heterotrophic in nature.
Protista is also a kingdom that has single-celled organisms but these organisms are autotrophic and heterotrophic both. Plantae is generally autotrophic in nature. While bacteria belong to the prokaryotic origin.
Therefore, the kingdom that does this organism most likely belongs to the Fungi. Thus, the correct option for this question is B.
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which of the following is a renewable resource?
A. Sunlight
B. Natural gas
C. Copper
D. Coal
Answer:
Out of the following, the renewable resource is Sunlight.
I think the right answer is Sunlight.
Additional Information:
Those resources which can be reuse again and again is called renewable resources
Hope it will help
What happens if one animal eats poison and another animal eats it? Will it be poisoned too?
Answer:
yes
Explanation:
If one animal eats poison , it means that kne animal is contaminated , if anyone else consume it then that animal also gets poisoned .
i have no clue how to answer this
I believe this question is trying to get you to realize the difference between acquired traits(one you get through doing something during life) and heritable traits(ones from Mom/Dad). For example, I really wish I was 6 foot 4... but the height trait comes genetically from your parents since it is coded in my DNA how tall I will be, therefore this trait must be passed down genetically and somewhere down the evolutionary tree the humans in the region which my family comes from was better off being short. An example that comes from acquired traits could be muscularity... my parents are both not very muscular but throughout my lifetime I enjoy working out and have become much more muscular, no matter how much your parents or grandparents lift weights YOU won't change so that change must be acquired through aging during your lifetime. Now the amount of muscle your body can put on is a heritable thing but that is beside the point. Hope this helps :)
Which organism would not carry out cell respiration
A. Oak tree
B. Mushroom
C. Anaerobic bacterium
D. Bear
Answer:
D. Bear
Explanation:
The answer is bear because a bear is an animal. Everything but animals can carry out cellular respiration.
9
Which is the basic functional unit of life?
organism
organ
tissue
cell
Answer:
cell
Explanation:
The cell is the basic structural and functional unit of life. Cells are independent, single-celled organisms that take in nutrients, excrete wastes, detect and respond to their environment, move, breathe, grow, and reproduce.
Answer:
D.) Cell
Explanation:
On Edge 2020... just took test!
b) How many species has the genus Homo had in the course of history and when did this
genus first arise? (2 points)
Answer: The genus Homo had three species, H. habilis, H. rudolfensis, and H. erectus, and the genus first arose about 2.5 million years ago
Explanation:
What hypothesis did Pasteur’s experiment test?
Answer:
Where do the microbes come from to cause broth to decay. Hypothesis: Microbes come from cells of organisms on dust particles in the air; not the air itself.
How do bacteria and viruses spread from one person to another?
A. Sneezing and coughing.
B. Contaminated food or water.
C. Contact with other people's blood or body fluids.
d. All of the above.
Answer:
d
Explanation:
Answer:
D
Explanation:
PLZZZZZ HELPPP!!
Select the correct answer.
A force of 15 newtons is applied to both Object A with a mass of 25 kilograms and Object B with a mass of 50 kilograms. What is true about th
acceleration of Object A and Object B?
ОА
Acceleration of Object A is four times that of the acceleration of Object B.
OB.
Acceleration of Object A is the same as the acceleration of Object B.
Ос.
Acceleration of Object A is half the acceleration of Object B.
OD
Acceleration of Object A is twice that of the acceleration of Object B.
Answer:
B
Explanation:
i believe
Why is electroreception important to sharks?
O keeps predators away
O detects prey
O balance
O attracts mates
Model: To determine the probability of a trait combination such as black fur and red eyes consider each trait separately. Fill in the Punnett square for each trait. Then determine the probability of black fur and the probability of red eyes. Express each probability as a fraction.
Answer:
3/8
Explanation:
I think I can help with completing the question.
Above each punnet square, the genotypes of the parents were given right? something like this:
Parent 1 fur genotype: Ff Parent 1 eye genotype: Ee
Parent 2 fur genotype: Ff Parent 2 eye genotype: ee
F f E e
F FF Ff e Ee ee
f Ff ff e Ee ee
Probability of black fur if dominant is: Probability of red eyes:
3/4 2/4= 1/2
Probability of a trait combination such as black fur and red eyes is
3/4*1/2 = 3/8.
