Ecology Chapter 3 Test

why is astrobiology such a popular new field in science?

• people want to know if there’s life outside of Earth.

• people want to understand space.

• people think space is cool.

what factors limit the extent of the biosphere?

do ecologists ever study individual organisms?

• no, there is no need to.

• yes, they study it to learn more about the biome.

• yes, ecologists study individual organisms to to see how they relate to the environment.

• no, they study the group as a whole.

why is biodiversity a sign of a healthy ecosystem?

• it shows that there are many creatures interacting.

• it shows that the biome and habitat can hold and care for a large amount of organisms.

• it shows there are a wide variety of the same species.

which of the following terms are in order of increasing land mass?

• biome, habitat, ecosystem, biosphere.

• biosphere, biome, ecosystem, habitat.

• ecosystem, biome, habitat, biosphere.

• habitat, biome, ecosystem, biosphere.

what are three abiotic factors in a tide pool?

what are three biotic factors in a tide pool?

is a tide pool an ecosystem, habitat, or biome?

• ecosystem. (a group of biotic and abiotic factors in an area)

• habitat. (one organism’s preferred area)

• biome. (many creatures in one large area)

which is the correct food chain consisting of these animals?: a otter, algae, limpets, and crabs

• algae, crabs, limpets, otters.

• limpets, algae, crabs, otters,

• crabs, algae, otters, limpets.

• algae, limpets, crabs, otters.

what factors affect climate?