Biology Chapter 6 Review

Front

What is a keystone species?

Back

A species that has a disproportionately large effect on its environment relative to its abundance, often increasing biodiversity through its interactions.

Front

How do keystone species shape communities?

Back

By increasing biodiversity through their interactions.

Front

What does a predator-prey cycle consist of?

Back

An increase in prey population followed by an increase in predator population, then a decrease in prey population and a decrease in predator population.

Front

What is a pioneer species?

Back

A species that colonizes previously uninhabited land, establishing a stable environment for other species.

Front

What is the primary factor that limits population growth in an ecosystem?

Back

Availability of resources.

Front

What is the primary role of producers in an ecosystem?

Back

To convert solar energy into chemical energy through photosynthesis.

Front

Define biodiversity.

Back

The variety of life in a particular habitat or ecosystem, including the number of different species.

Front

What is ecological succession?

Back

The process by which ecosystems change and develop over time, often following a disturbance.

Front

What is the difference between primary and secondary succession?

Back

Primary succession occurs in lifeless areas, while secondary succession occurs in areas where a disturbance has destroyed an existing community.

Front

What is a trophic level?

Back

A level in a food chain or food web, representing the flow of energy and nutrients from producers to various levels of consumers.