APES MCQ (College Board)

Which of the following statements is true of aquatic biomes?

Freshwater biomes are a vital source of drinking water.

Which of the following biomes is best characterized as an area that forms the narrow band along the coast that experiences a range of environmental conditions (including daily changes in sunlight, temperature, and water) ?

Intertidal zones

Where is the majority of fresh water found on Earth?

Ice caps and glaciers

This biome contains plants that are adapted to prevent water loss due to the low average rainfall and high temperatures year-round.

Desert

This biome is characterized by long dry seasons and is dominated by grasses, shrubs, and grazing animals.

Savanna

This biome is warm and wet, with little seasonal variation in temperature and frequent precipitation.

Tropical rain forest

Five different species of warblers, seed-eating birds, live in the same species of conifer trees. All of the birds migrate to coniferous forests during the summer, and different species reside in different areas in the same tree. They feed on the seeds of the conifer trees, but the different species do not mate with each other.

Resource partitioning of the seeds reduces competition, and the five different species can live in the same tree.

In a fish species, the number of eggs that hatch and survive for one year varies depending on the number of eggs that were produced. As the number of eggs produced increases past a threshold number, the survival rate of the offspring decreases. Which of the following statements best explains why only a limited number of offspring can survive in a fish population?

The chance of survival decreases when there is intraspecific competition for resources among surviving yearlings.

Which of the following best describes a symbiotic relationship?

Intestinal bacteria inhabit the gut of humans.