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garik1379 [7]
4 years ago
9

What is internal and external stimulus? what is an example of each?

Biology
1 answer:
Harrizon [31]4 years ago
7 0
What is internal and external stimulus? What is an example of each?

Answer:A internal is situated or existing in the interior of something Example:No country should interfere in another country's internal<span> affairs

Answer:A external stimulus </span><span>is a detectable change in the internal or </span>external environment. Example: When a person sees a burger when hungry they s<span>tomach starts to  growl</span>

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How does mutation relate to variation
Anastasy [175]

Answer:

Mutation is the source for new genetic variation: Genetic variation is brought about by random mutation. Without mutation, genetic variation cannot occur. Mutation is a change in the genetic code in DNA and can lead to a change in the protein that is coded for that segment of DNA.

Explanation:

Mutations are changes to an organism's DNA and are an important driver of diversity in populations. Species evolve because of the accumulation of mutations that occur over time. ... This mutation has introduce a new allele into the population that increases genetic variation and may be passed on to the next generation.

8 0
3 years ago
Why are fats considered as high energy compounds?
jek_recluse [69]

Answer:

1. Fats contain mostly C-H bonds, it has less oxygen therefore making it a high energy compound

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6 0
3 years ago
You coat a Petri dish with fibronectin and proteoglycans and culture cells on the dish. The cells adhere to the dish. You repeat
Lana71 [14]

Answer:

The results of the experiment is a process called competitive inhibition.

Explanation:

Competitive inhibition is a process where an inhibitor (RGD tripeptides in this case) that resembles a normal substrate bind the active site of an enzyme and prevents the a real substrate from binding and a product from being formed (blocking enzymes active site).

When RDG tripeptides are added the cells would not adhere to the dish (competitive inhibition).

8 0
3 years ago
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Macy observes the lake near a park is covered in green slime. Over a few days she sees that the fish in the lake have started dy
horsena [70]

An algal bloom has drained the lake of oxygen.

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The possible cause of the fish death in the lake near the park is that an algal bloom has drained the lake of oxygen.

The green slime on top of the lake are the growing algae.

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learn more:

Algae brainly.com/question/1739812

#learnwithBrainly

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_is used to help substances enter or exit the cell membrane
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