APES Unit 1 Review

The largest area of old-growth forest in the United States is located in which state?

Alaska

Traveling southward from the Arctic regions of Canada to the tropics of Panama, one passes through several biomes- tundra, coniferous forest, temperate deciduous forest, and tropical rain forest. This pattern of change in vegetation is primarily the result of:

An increase in both mean annual temperature and mean annual precipitation

Which of the following world regions contain the greatest area of rainforest?

Brazil and Indonesia

Exemplified by moss growing on a tree trunk in a forest

Commensalism

Exemplified by starlings displacing bluebirds from nesting sites:

Competition

In a typical forest ecosystem, dead trees and fallen trees are most important because of their role in which of the following?

Contributing to soil erosion

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

Desert

In Mediterranean climate regions like portions of California, a wetter-than-normal winter often leads to greater severity of fires the following summer. This seeming paradox occurs because increased rain leads to:

Greater accumulation of chaparral biomass

Which of the following best describes a symbiotic relationship?

Intestinal bacteria inhibit the gut of humans

Which of the following best illustrates an abiotic component of the environment affecting a biotic component of the environment?

Low phosphorus content in soil limits the growth of vegetation

Exemplified by bees consuming nectar and carrying pollen from one flower to another:

Mutualism

Exemplified by ticks feeding on a deer

Parasitism

Two bird species coexist by feeding on the same type of insects in different parts of a tree. One bird species hunts insects near the top of the tree. The other bird species hunts insects near the base of the tree. Which of the following concepts is demonstrated between the two bird species?:

Resource partitioning

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 reduce competition, and the five different species can live in the same tree

Country with the largest area of boreal forests

Russia

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

Savanna

The great grasslands of the world have which of the following primary characteristics in common?:

Seasonal cycles of temperature and precipitation produce abundant vegetative growth

The thick forest of this biome tends to be well adapted to short growing seasons:

Taiga

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 survival yearlings

Which of the following best describes the change in the elk population since the introduction of wolves into Yellowstone in 1995?

The elk population steadily decreased in numbers

Based on the table, which of the following claims about the relationship between the tree finch and the invasive fly is best supported?

The flies and finches have a parasitic relationship; the finches provide a home for the fly, and the fly decreases the breeding success of the finches

Which of the following is a characteristic of tropical rain forests?

Their soils are relatively poor in nutrients

Which of the following best describes soil in many tropical rain forests?

They are quickly depleted nutrients when the forest is removed

Location 1 is most likely located in which of the following terrestrial biomes?

Tropical rainforests

This biome has the highest net primary productivity, in part because of consistently warm temperatures and abundant sunlight.

Tropical rainforests

The underlying subsoil of this biome is permafrost, which prevents both water draining through and deep-rooted plants from growing. Additionally, there is very little precipitation per year.

Tundra

Which of the following is a potential disadvantage of reintroducing wolves to Yellowstone?

Wolves leaving the park may prey on livestock in grazing land outside the park