Biology EOC Review: L.17.5 Ecosystems and Community & L.17.20 Human Impact and Energy Resources

Front

What is deforestation?

Back

The mass removal of trees and plant life from an ecosystem as a result of human activity.

Front

What are the stages of primary succession in an ecosystem?

Back

bare rock, lichens, small annual plants, perennial herbs and grasses, shade-intolerant trees, shade-tolerant trees.

Front

True or False: For thousands of years, the human population remained about the same because the environment’s natural carrying capacity for humans was much lower back then.

Back

FALSE.

Front

What is a limiting factor in a population of organisms?

Back

Availability of food.

Front

What must an ecologist know to assess a population’s growth rate?

Back

How many individuals move in from somewhere else.

Front

Define ecosystem.

Back

A community of living organisms and their interactions with their environment.

Front

What is carrying capacity?

Back

The maximum number of individuals of a species that an environment can support sustainably.

Front

What is primary succession?

Back

The process of ecological change that occurs in an area where no soil exists, starting from bare rock.

Front

What is secondary succession?

Back

The process of ecological change that occurs in an area where a disturbance has destroyed an existing ecosystem but soil remains.

Front

What role do producers play in an ecosystem?

Back

Producers convert solar energy into chemical energy through photosynthesis.