Unit 7 - Ecology TEST REVIEW

Something that limits a population from growing is known as...

• biome

• limiting factor

• only biotic

• only abiotic

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What is a system formed by the interaction of a community of organisms with their physical (abiotic) environment?

• ecosystem

• biosphere

• ecology

• biome

A community is different than an ecosystem because...

• An ecosystem only includes all of the living things in an area

• A community and ecosystem include both the living and nonliving things in an area

• A community only includes all of the living things in an area

• There is no difference between community and ecosystem

What symbiotic relationship is this:

A bee pollinates a flower and the flower gets its DNA spread to reproduce.

• Mutualism

• Commensalism

• Parasitism

• Predation

• Competition

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What symbiotic relationship is this:

When a hookworm lives inside a sheep and steals nutrients from the sheep.

• Mutualism

• Commensalism

• Parasitism

• Predation

• Competition

What symbiotic relationship is this:

When a Florida Panther hunts, kills, and eats a whitetail deer.

• Mutualism

• Commensalism

• Parasitism

• Predation

• Competition

What symbiotic relationship is this:

When an ant gets food from an aphid, but the aphid isn't harmed and gets nothing out of the relationship.

• Mutualism

• Commensalism

• Parasitism

• Predation

• Competition

What symbiotic relationship is this:

When a Burmese python fights with an American alligator over food and land, but they're not trying to eat one another.

• Mutualism

• Commensalism

• Parasitism

• Predation

• Competition

What is the difference between a food chain and food web?

• A food web is simple

• A food chain is complex

• Both food chains and food webs show complex feeding relationships

• A food web shows complex feeding relationships but a food chain shows simple relationships

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Carrying capacity is a limiting factor in ecosystems. Carrying capacity means...

• The available energy at each tropic level.

• The amount of producers in an ecosystem.

• The largest number of organisms of a population that an environment can support.

• Any close ecological relationship between two or more organisms.