Unit 2 Test Review - Environmental Changes

Front

Define Biomass.

Back

Biomass is the amount of organic matter that can be used as a source of energy.

Front

Define Biodiversity.

Back

Biodiversity is the variety of life in an ecosystem.

Front

Define Niche.

Back

An organism's job or role in an environment.

Front

What is the relationship between space, water, and biodiversity?

Back

In general, more space and water can support more producers and therefore more biodiversity.

Front

What kind of succession occurs after a forest fire when the soil remains intact?

Back

Secondary Succession.

Front

What is Primary Succession?

Back

Primary Succession is the process of ecological change that occurs in an area where no soil exists, such as after a volcanic eruption.

Front

What is an example of a keystone species?

Back

A sea otter is an example of a keystone species because it helps maintain the balance of the ecosystem by controlling sea urchin populations.

Front

What is the significance of an ecosystem's carrying capacity?

Back

The carrying capacity is the maximum number of individuals of a species that an environment can support sustainably.

Front

What is the difference between renewable and non-renewable resources?

Back

Renewable resources can be replenished naturally over time, while non-renewable resources are finite and cannot be replaced once used.

Front

What is an example of a habitat?

Back

A forest, a desert, and a coral reef are all examples of different habitats.