Cumulative Exam — Cumulative exam

Question 1

Which organisms are prokaryotes?

Revolt · Accepted Answer

archaea

Question 2

Kai looks at a photo of herself with her parents. She notices that, while her features are similar to her parents’ features, they do not appear to be identical. Which explains why this is the case?

Revolt · Accepted Answer

Their DNA is made of different codon sequences.

Question 3

Some theories are developed from repeated testing of a single hypothesis. Cell theory, germ theory, and the theory of evolution all have developed from the testing of multiple related hypotheses. Which statement best explains why some theories develop this way?

Revolt · Accepted Answer

Each experiment reveals a different piece of information that is needed to develop the theory.

Question 4

Which of these statements is true about autotrophs, but not heterotrophs?

Revolt · Accepted Answer

They use sunlight, water, and carbon dioxide to make sugars.

Question 5

As DNA is replicated, which DNA base pair will bond to cytosine?

Revolt · Accepted Answer

guanine

Question 6

How does the contractile vacuole in a single-celled organism function to maintain homeostasis?

Revolt · Accepted Answer

It pumps water out of the cell.

Question 7

Which is a point mutation and not a frameshift mutation?

Revolt · Accepted Answer

silent

Question 8

The diagram shows one step in the process of protein synthesis.Which step is shown?

Revolt · Accepted Answer

transcription

Question 9

Which term describes an enzyme?

Revolt · Accepted Answer

catalyst

Question 10

Which best describes the advantage of pest resistance?

Revolt · Accepted Answer

Farmers do not have to use harsh chemicals to save their crops.

Cumulative Exam — Cumulative exam Answers

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