Ecology Unit 1 Test Study Guide

Front

What is the part of Earth where life exists?

Back

The biosphere.

Front

How do you estimate the population size of crabs using quadrats?

Back

Count the number of crabs in each quadrat, calculate the average, and then scale it up based on the total area.

Front

What is an example of a population in ecology?

Back

All of the white-tailed deer living in a forest.

Front

What are biotic factors?

Back

Living components of an ecosystem, such as elephants, plants, and trees.

Front

What is the term for all ecosystems on Earth combined?

Back

A biosphere.

Front

Define 'ecosystem'.

Back

A community of living organisms and their physical environment interacting as a system.

Front

What is a community in ecological terms?

Back

A group of different populations that live together in a defined area.

Front

What is a biome?

Back

A large geographic biotic unit, a major community of plants and animals with similar life forms and environmental conditions.

Front

What is the difference between a population and a community?

Back

A population consists of individuals of the same species, while a community includes different species living together.

Front

What are abiotic factors?

Back

Non-living chemical and physical parts of the environment that affect living organisms.