Populations and Communities

A prairie dog, a hawk, and a snake are all members of the same:

• species

• community

• population

• niche

Which of the following correctly shows the levels of organization from smallest to largest?

• organism, species, population, community, ecosystem

• species, organism, population, ecosystem, community

• species, ecosystem, population, community, organism

• ecosystem, community, population, species, organism

• community, species, organism, ecosystem, population

Which of the following would be considered ABIOTIC factors in a forest ecosystem?

• soil

• oak tree

• oxygen

• sunlight

• white-tailed deer

All of the following are limiting factors for populations except

• weather

• space

• time

• food

In which type of relationship does one organism benefit and the other is not helped nor harmed?

• mutualism

• commensalism

• parasitism

• predator-prey

A parasite lives on or inside its

The series of predictable changes that occur in a community over time is called

• natural selection

• ecology

• commensalism

• succession

What term is used to describe the first species to populate an area?

Which of the following would be considered pioneer species?

• mushrooms

• lichens

• mosses

• insects

• grasses

Symbiotic relationships include mutualism, commensalism, and parasitism. Which of the images shows mutualism?

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