Biology Chapter 3 Test

What abiotic factor(s) affect a salmon stream?

A food web is composed of overlapping

Autotrophs are also known as

Cooler temperatures and moderate rainfall. Hemlock, fir, redwood trees. Elk, moose, wolverines.

What is the number of species within an ecosystem?

What is the population size of the species within an ecosystem?

Which of the following would be considered a biotic factor of an ecosystem?

Each trophic level in an ecological pyramid contains

The study of ecology includes the study of the interrelationships between organisms and

Permanently frozen ground and little vegetation. Long winters. Short summers. Caribou. Bears.

Organisms that dwell on the ocean floor are known as

The forest in a tropical rainforest biome can be divided into layers of growth based on

Two species of fish living in the same stream, but not sharing habitats or prey is

Temperature and precipitation can be affected by

The total amount of living matter that an ecosystem can support is its

The average weather in an area over an extended period of time constitutes an area's

Vertical zonation refers to the ecological layers within a biome due to

Very low precipitation. Can be hot or cold. Plants and animals conserve water.

On a mountain, temperatures & precipitation are insufficient to grow trees above this line.

The smaller part of an ecosystem that an organism prefers to live in is that organism's

The temperature and precipitation amounts between adjacent climate zones tend to

Warm, dry summers. Cool, wet winters. Shrubs with tough, waxy leaves. Diverse plant life.

The way that an organism lives in its habitat is known as that organism's

Different animals living together & interacting with each other within a particular habitat is

Competition can occur between

T or F: A particular type of biome tends to be restricted to a small portion of the earth.

On the big island of Hawaii, wild sheep live in herds. These animals form an isolated

The term biodiversity refers to

Coyotes and bobcats both prey on small rodents. This is an example of

Dead plant and animal material is known as

The ________________ includes all the parts of the earth and its atmosphere where life exists.

All the organisms of the same species living in the same area are known as

A relationship in which one organisms benefits but the other is neither helped nor harmed is

Which of the following shows a plausible food chain?

Warm temperatures. Dry and rainy seasons.Few trees. Herds of herbivores. Packs of predators.

Two organisms living together and interacting in a way that benefits both organisms is

Huge rainfall. Warm year-round. Great biodiversity. Canopy and understory. Sloths and frogs.

When an organisms depends on another host organism for food, this is a form of

A relationship in which one organisms benefits but the other is harmed is

Moderate temperatures and rain, but not enough rain to support trees. Wild horses & pheasants.

Moderate temperatures & rainfall. Four distinct seasons. Abundant wildlife. Oak, birch, maple.

Regions of the biosphere that share certain environmental conditions, such as climate, are