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Unit Test — Unit test Answers

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Which series lists the stages of development in the gestational process in order, from beginning to end?

A
gametes ® embryo ® zygote ® fetus ® organism
B
gametes ® zygote ® embryo ® fetus ® organism
C
embryo ® gametes ® zygote ® fetus ® organism
D
zygote ® gametes ® embryo ® fetus ® organism
22
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Consider this plant cell.Which organelle is labeled E?

Question illustration
A
Golgi apparatus
B
chloroplast
C
ribosome
D
nucleus
23

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

A
It pumps water into the cell.
B
It pumps water out of the cell.
C
It pumps solutes into the cell.
D
It pumps solutes out of the cell.
24

Which organelle packages and distributes proteins that are received from the endoplasmic reticulum?

A
vacuole
B
cytoplasm
C
Golgi apparatus
D
ribosome
25

The data in the graph are the result of a paramecium being placed in a hypertonic salt solution.What change would most improve the usefulness of the graph?

Question illustration
A
Replace the concentration descriptions with actual values.
B
Plot contractions per second instead of contractions per minute.
C
Remove the plotted points and just keep the line.
D
Remove the name of the organism from the title.

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