BIOLOGY HIGH SCHOOL

A recent study has shown an increase in the number of predators in an ecosystem. Which of the following is not a possible cause for the growth?

Answers

Answer 1
Answer:

one of the following that is not a possible cause for the growth is  B

An increase in the population of prey it feeds on.

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Though many think of it as a drug that gets you more energetic, the actual mechanism of ________ is to block chemicals that inhibit or slow nerve activity in the brain. A) Caffeine B) Alcohol C) Sugar D) Vitamins

Answers

Answer: A.Caffeine

Explanation:

Final answer:

Caffeine works by blocking adenosine, a neurotransmitter that promotes sleep. This makes us feel more awake and alert. It's the most commonly used psychoactive substance and is found in many everyday items like coffee and medicines.

Explanation:

The actual mechanism of A) Caffeine is to block chemicals that inhibit or slow nerve activity in the brain. Caffeine functions as an adenosine antagonist, meaning it inhibits the adenosine receptors. Adenosine is a neurotransmitter that promotes sleep, so caffeine's effect reduces sleepiness and enhances alertness.

This mechanism allows caffeine to indirectly increase adrenergic activity (energy release), promoting a more energetic state. While caffeine is often associated with increased alertness and arousal, it's important to remember that it's acting primarily by blocking the inhibiting effect of certain chemicals on the brain nerve activity.

It's noteworthy that caffeine, as the world's most widely consumed psychoactive drug, is unregulated, found in everyday items like beverages and medicines, and generally not harmful in moderation.

Learn more about Caffeine here:

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Kevin is describing the orbit of Earth. At what point in Earth's orbit is Earth closest to the sun?when Earth reaches its average distance from the sun
when Earth reaches perihelion
when Earth reaches its slowest speed
when Earth reaches aphelion

Answers

2.When Earth reaches perihelion.
Perihelion is about 2 weeks after December 21, the closest to the sun . Aphelion is about 2 weeks after June 21, the farthest from the Sun.

Answer:

c

Explanation:

The process of evolution is based on _____. phenotypic inheritance genotypic inheritance

Answers

The process of evolution is based on the genotypic inheritance as the genes changes overtime.

genotypic inheritance

If an enzyme is absent during polypeptide production, what can occur?

Answers

I think the answer is mutation!
Answer:  mutation .
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Im guinea pigs, short hair is dominant and long hair is recessive. A short haired male and a short haired female produced mostly short haired offspring but a few were long haired. show how you can determine the genotypes of the parents

Answers

Answer/Explanation:

Let's say the allele for short hair is S and the allele for long hair is s. Since long hair is recessive, an individual would need to have two copies of that allele to show the genotype (h0m0zygous - ss). That means they must inherit one from each parent.

A guinea pig with short hair could be h0m0zygous (SS) or heterozygous (Ss)

Since a short haired male and a short haired female produced some long haired offspring, they must each have a copy of the long haired allele (s). Otherwise there is no way their offspring could inherit two copies of the s allele. The offspring must have got one s allele from each parent.

Therefore, the parents must both be heter0zygous (Ss)

As temperature increases, humidity decreases true or false only answer if u know 100

Answers

Yes it does because the vapor starts to become water.
False, because humidity actually increases.
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