Question 10 of 10
2 points
a cell must be from a plant if the cell has
o
a. ribosomes
o
b. cytoplasm
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c. mitochondria
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d. chloroplasts

Substances that can pass through cell membranes by diffusion include a. na ions. b. proteins c. glucose. d. oxygen.

How does the human body lever work?

Which of the following must be true for a fossil organism to be useful as an index fossil? a. the fossil organism must be widespread geographically. b. the fossil organism must be abundant. c. the fossil organism must be limited to a short span of geologic time. d. all of the above.