Env Sci Semester 1 Review

Front

What happens when a population overshoots the carrying capacity of its environment?

Back

Resources become limited and death rates rise.

Front

What does exponential (r) growth describe?

Back

Population growth with no limits.

Front

What is adaptation in biology?

Back

The process of acquiring traits to survive in an environment.

Front

What is the role of a positive feedback loop in a system?

Back

It increases a process or component.

Front

What type of trees tend to dominate the boreal forest due to their ability to survive winter cold?

Back

Conifers.

Front

What is carrying capacity?

Back

The maximum population size that an environment can sustain indefinitely.

Front

What is a negative feedback loop?

Back

A process that decreases a system's output, promoting stability.

Front

Define biodiversity.

Back

The variety of life in a particular habitat or ecosystem.

Front

What is ecological succession?

Back

The process of change in the species structure of an ecological community over time.

Front

What is a keystone species?

Back

A species that has a disproportionately large effect on its environment relative to its abundance.