Question

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Answer 1

what exam

Answer 2

Which of the following predicts what might happen to a coral reef if protists disappeared?
A. Whales, such as baleen whales, that eat protists would starve.

B. Coral animals would suffer from lack of food and the reef would be destabilized by a lack of calcium carbonate.

C. Many animals would lose the shelter of the kelp forests that make up coral reefs.

D. An algal bloom would occur, and the decomposition of dead protists would remove oxygen from the water.
If the apical meristem of a mature plant is removed, the plant will most likely
A. show a dramatic and rapid increase in height.

B. lose apical dominance and grow lateral branches.

C. develop apical dominance and begin to flower.

D. lose its ability to develop new roots.
During an experiment, a scientist observed prokaryotes that lived near volcanic vents deep in the ocean. The scientist MOST likely observed
A. photoheterotrophs.

B. heterotrophs.

C. chemoautotrophs.

D. photoautotrophs.
Which of the following does NOT describe the macronucleus of a paramecium?
A. The macronucleus does not disintegrate during conjugation.

B. The macronucleus has multiple copies of the genes that are used in day-to-day activities.

C. The macronucleus is not exchanged during conjugation.

D. The macronucleus forms from the fusion of micronuclei.
In many plants, stomata are found only on the lower surface of the leaf. The most likely explanation for this fact is that
A. photosynthesis only occurs in the spongy mesophyll near the bottom of the leaf.

B. stomata are closer to vascular bundles that bring water into the leaf.

C. gravity plays a role in gas exchange.

D. water loss would be less on the shaded lower surface than in direct sun

Answer 3

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