Ecology Review for Quiz

An abiotic factor is

• Living

• Non-living

What makes up a population?

• Organisms that interact with each other

• A group of the same species that live in the same area

• Organisms of two different species

• Abiotic factors

What makes an ecosystem different from a community?

• An ecosystem only contains biotic factors when a community does not.

• An ecosystem contains only abiotic factors while a community only contains biotic factors.

• An ecosystem includes both abiotic and biotic factors while a community only contains biotic factors.

• An ecosystem contains all the communities of the world.

Which of the following is NOT a biotic factor?

• Food

• Bacteria

• A tree limb

• A waterfall

A biotic factor is

• Living

• Non-living

Which of the following is NOT an abiotic factor?

• Sunlight

• Wind

• Flower

• Rain

Select the choice that lists the levels of ecology in order from smallest to largest.

• Organism, population, community, ecosystem, biosphere

• Organism, community, population, biome, ecosystem

• Organism, population, biosphere, ecosystem, community

• Organism, ecosystem, community, population, biome

Some limiting factors that affect population growth include the lack of food, lack of water, lack of living space, the spread of disease, the weather, and competition between organisms.

• True

• False

An organism's habitat is where it lives.

• True

• False

Symbiotic relationships are formed between

• two different species that live in the same ecosystem

• two of the same species that live in the same ecosystem

• one organism and an abiotic factor in the same ecosystem

• two abiotic factors in the same ecosystem