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ludmilkaskok [199]
3 years ago
8

The optimum environment for pepsin is?

Biology
1 answer:
Anna007 [38]3 years ago
6 0
<span>Pepsin is an enzyme that breaks down proteins into amino acids in the stomach (where the pH is 1-3). Pepsin needs to be in an acidic environment to be activated. The optimum temperature is between 30 oC and 40 oC because the average human body temperature is 37 oC. The optimum pH is the acidic one because your stomach has an acidic pH.</span>
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Which statement best illustrates a biotic or an abiotic factor that is often found in a city park?
ddd [48]

Answer:

Biotic: Plants

Abotic: Rocks

Explanation:

A biotic factor is something in an ecosystem or environment that is living. Some examples that could be found in a park are grass, flowers, trees, squirrels, pigeons, fish or people.

An abiotic factor is the exact opposite of a biotic factor: something in an ecosystem or environment that is not alive. Some examples that may be found in a city park include a park bench, a trash can, rocks, a playground, a pool, basketball court, temperature, and humidity.

5 0
3 years ago
What did Darwin conclude about the finches on the Galapagos Islands that later supported his theory of evolution? Check all that
Ahat [919]

Answer:

The finches on Galapagos Islands had different beak

The beaks of the finches changed over time

The Galapagos finches had a common ancestor

Explanation: Darwin's Finches are a good example of natural selection and adaptive radiation of evolution. The different finches in Galapagos Island have emerged from a common  black, seed eating, short beak finches. This is called adaptive radiation, where different species arose from a single ancestor.

Due to changes in the natural environment, food resources, some finches have a long beak. This long beaks help them to eat insects. As a result, the competition will be less and nature selects them to survive in the new environment. This is a natural selection of evolution.

3 0
3 years ago
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What color on the pH paper indicates that an acid has formed?​
pishuonlain [190]

Answer:

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3 0
3 years ago
Which of these is a function of testosterone in reproduction?
Alexeev081 [22]

i think its D but i'm not 100% sure

4 0
3 years ago
Match each step of the scientific method with its description
Kisachek [45]

Answer:

Explanation:

Make an observation.

Ask a question.

Form a hypothesis, or testable explanation.

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Test the prediction.

Iterate: use the results to make new hypotheses or predictions.

4 0
3 years ago
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