Chapter 21 Populations and Communities Review

Front

What type of relationship exists when one organism eats another organism?

Back

Predation

Front

What is the term for a symbiotic relationship where one organism benefits and the other is harmed?

Back

Parasitism

Front

What are the levels of organization in ecology from largest to smallest?

Back

Ecosystem -> Community -> Population -> Organism

Front

Are bacteria and fungi considered biotic factors in a habitat?

Back

True

Front

What term describes the process of individuals leaving a population?

Back

Emigration

Front

What is the term for a relationship where both organisms benefit?

Back

Mutualism

Front

What is the difference between a population and a community?

Back

A population is a group of individuals of the same species, while a community is made up of different species living together.

Front

What is an abiotic factor?

Back

A non-living component of an ecosystem, such as water, sunlight, and minerals.

Front

What is the role of producers in an ecosystem?

Back

Producers, such as plants, convert sunlight into energy through photosynthesis.

Front

What is the significance of keystone species in an ecosystem?

Back

Keystone species have a disproportionately large impact on their environment relative to their abundance.