Practice for Chapter 1 Flashcard Ecology

Front

What are the different ecological levels?

Back

Organism, Population, Community, Ecosystem, Biosphere

Front

What causes a population size to increase?

Back

The number of births is greater than the number of deaths.

Front

If a population size stays the same, what must be true?

Back

The number of individuals born is equal to the number of individuals that died.

Front

What is the best definition of an organism?

Back

An individual plant, animal, fungus, or single-celled life form.

Front

What explains a decrease in a population size?

Back

Fewer individuals were born than died.

Front

What is a population?

Back

Many individuals of the same species living in the same area.

Front

What is an ecosystem?

Back

All of the living and nonliving things in a particular area.

Front

What is a community in ecology?

Back

A group of different species living together in one area.

Front

What is the biosphere?

Back

The global sum of all ecosystems; the zone of life on Earth.

Front

What is a producer in an ecosystem?

Back

An organism that can make its own food, typically through photosynthesis.