The most inclusive level of organization listed here is
a(n)
a. organ.
b. atom.
c. molecule.
d. multicelled organism.
e. cell.
Answer: d
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Water passes through lipid bilayers (select all correct choices):
A. directly by diffusion. B. through aquaporins by facilitated diffusion. C. through protein pumps and active transport. D. through gap junctions. E. through hemidesmosomes.
The scientists use a virus to insert the new DNA into the cabbage plant’s DNA. The insect
pests would be considered __________.
a. primary producers b. primary consumers c. secondary consumers d. tertiary consumers
Imagine two new volcanic islands spring up in the middle of the ocean. Each island is quickly founded by a few individuals of a species of ground-nesting bird that requires very dry land (with little rain) to thrive. The two islands differ in rainfall, one wetter and one drier. Assuming that rainfall determines carrying capacity for these birds, and that rainfall is consistent over time, what might the growth curves for the bird populations look like over many years for the two islands?
a. Drier Wetter
b. Wetter Drier
c. Time Drier Wetter
d. Wetter Drier Time
A neutral atom must contain ________
A) an equal number of neutrons and electrons B) an equal number of protons, neutrons, and electrons C) an equal number of protons and neutrons D) an equal number of protons and electrons