Bennett Bio CH 3 Review

The forest in a tropical rainforest biome can be divided into layers of growth based on how much sunlight each receives.

Pelagic organisms are those that dwell on the ocean floor.

A particular type of biome tends to be restricted to a small portion of the earth.

(Oaks, birches, maples) biome characterized by mod. temps and rain. Abundant wildlife (raccoons, songbirds) & 4 seasons.

This biome has permanently frozen ground and little vegetation, long winters and short summers (caribou, grizzly bears)

Each trophic level in an ecological pyramid contains _______ energy than the level beneath it.

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

Symbiosis is the phenomenon of diff. animals living 2gether and interacting with each other within a particular habitat.

Regions of the biosphere that share certain environ conditions & have a certain set of org's adapted to those conditions

The temperatures and precipitation amounts between adjacent climate zones tend to change abruptly.

When an organism depends on another organism for food, called the host, the dependent organism is exhibiting

Huge amts of precip & year-round warm temps, support greatest biodiversity on Earth. Sloths, poison-arrow frogs.

Biome - mod.temps & precip, doesn't get enough rain for trees. Wild horses & pheasants.

The eco layers within a biome due to factors such as geo. elevation or depth of water are known as vertical zonation.

Which of the following shows a plausible food chain?

Each level on an ecological pyramid, such as producers, herbivores, and carnivores, is known as a trophic level.

The smaller part of an ecosystem that an organism prefers to live in is known as that organism's biosphere.

Trees (hemlock, fir, redwood) - characterized by cooler temps & mod rainfall. Elk, moose, and wolverines.

A food web is composed of overlapping trophic levels.

Two diff. organisms living/interracting 2gether, w/each other in a way that beni's both org's is known as commensalism.

Dead plant and animal material is known as biomass.

Competition occurs when organisms try to use the same resources.

An ecosystem usually contains a single kind of habitat.

The term biodiversity refers to

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

All the organisms of the same species and living the same area are known as a(n)

Study of ecology includes the study of the interrelationships between organisms and other organisms of the same species

Species richness is the numer of species/biodiversity in an area.

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

Competition can occur between

Regardless of whether it has hot or cold temps, this biome is defined by its very low precipitation.

This biome experiences warm temperatures year-round with distinct rainy and dry seasons. Few trees. Herds of herbivores.

Autotrophs are also known as

The way that an organism lives in its habitat...

warm, dry summers and cool, wet winters. Earth's smallest by land area. diverse plant life. shrubs w/tough, waxy leaves.

A population consists of all the organisms within an ecosystem.

Which of the following factors affect the biotic vertical zones in a body of water?

Two organisms that share a habitat but have no direct effect on each other are exhibiting

Which region of the choices below does not lie in the biosphere?