Ecology Test

A herd of elephants number at 31. What does 31 represent?

• population size

• population density

• population rate

• competition

Elephants live in the Okavango basin separated into many herds. What aspect of ecology does this describe?

• ecosystem

• population

• biotic factors

• species

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

All deer and mice living in a forest would be a population.

• True

• False

What are some biotic features of this desert ecosystem?

• cacti

• bushes

• mountains

• sand

Tags

NGSS.MS-LS2-3

Both living and nonliving things make up an ecosystem.

• True

• False

Tags

NGSS.MS-LS2-3

Choose all the examples of abiotic factors.

• sun

• water

• heat

• flower

Tags

NGSS.MS-LS2-3

Choose all examples of biotic factors.

• rocks

• mountains

• dog

• grass

Sharks play an important role in their community. Their population can impact the community significant (causing it to go up or down) and affect the rest of the ecosystem. What type of animal would this be?

• predator

• prey

• keystone species

• symbiotic species

Tags

NGSS.MS-LS2-4

A food chain contains ________ levels.

• 1-2

• 4-5

• 6-7

• 8-9

Tags

NGSS.MS-LS2-3

A food web does not show a predator-prey relationship.

• True

• False

Tags

NGSS.MS-LS2-2