AnswersBiology VIA Fall 2026 Lstrangesdale.orgCharacteristics of Life

Characteristics of Life — Unit test Answers

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1
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Rapid reproduction is an advantage of which process?

A
gamete formation
B
sexual reproduction
C
asexual reproduction
D
chromosome duplication
2
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Which refers to the maintenance of a stable internal environment despite changing external conditions?

A
differentiation
B
self-renewal
C
homeostasis
D
specialization
3

Tissue cultures (samples of cancer cells) are taken from cancer patients, and the cells are then grown in a laboratory. What is the purpose of growing cancer cells in a laboratory?

A
to test medicinal treatments before giving them to patients
B
to replace cancer cells with healthy cells
C
to provide evidence of cancer cells in the patient
D
to stop the cancer from growing in the patient
4

Which series of diagrams correctly represents the order of mitosis?

A
The steps of mitosis are shown. In step 1, the cell starts to break down structures. In step 2, the chromosomes line up at the center. In step 3, the chromatids separate from each other and are pulled to opposite ends of the cell. In step 4, the cell is divided.
Option A
B
The steps of mitosis are shown. In step 1, the cell starts to break down structures. In step 2, the cell is divided. In step 3, the chromatids separate from each other and are pulled to opposite ends of the cell. In step 4, the chromosomes line up at the center.
Option B
C
The steps of mitosis are shown. In step 1, the cell starts to break down structures. In step 2, the cell is divided. In step 3, the chromosomes line up at the center. In step 4, the chromatids separate from each other and are pulled to opposite ends of the cell.
Option C
D
The steps of mitosis are shown. In step 1, the cell starts to break down structures. In step 2, the chromatids separate from each other and are pulled to opposite ends of the cell. In step 3, the chromosomes line up at the center. In step 4, the cell is divided.
Option D
5

Fewer offspring is a disadvantage of which form of reproduction?

A
mitosis
B
asexual reproduction
C
binary fission
D
sexual reproduction
6

Which statement best summarizes the importance of meiosis to reproduction?

A
It produces diploid cells that are needed for sexual reproduction.
B
It produces diploid cells that are needed for asexual reproduction.
C
It produces gametes that are needed for sexual reproduction.
D
It produces gametes that are needed for asexual reproduction.
7

According to the endosymbiotic theory, which cellular process was involved in the evolution of mitochondria and chloroplasts?

A
symbiosis
B
phagocytosis
C
endosymbiosis
D
photosynthesis
8

Which function of the cell cycle is especially important to burn victims?

A
growth of existing cells
B
repair of existing cells
C
protection of new cells
D
reproduction of new cells

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