Ecosystems & Energy Flow Practice

Ecosystems & Energy Flow Practice

Multiple Choice

What is the definition of "Ecology"?

• the study of protecting the Earth

• the study of animals and their eating habits

• the study of organisms and how they interact with other organisms and their environment

Multiple Select

Check the objects below that would be considered part of this ECOSYSTEM. (check all that apply)

• animals

• plants

• water

• soil

• air

Multiple Select

Check the objects below that would be considered part of this COMMUNITY (check all that apply).

• animals

• plants

• water

• air

• insects

Multiple Choice

Which of the following terms applies to this group of deer, who are all the same species?

• ecosystem

• population

• niche

• community

Multiple Choice

A hyena watches a cheetah feed on a zebra, then sneaks in later to finish what is left behind. The cheetah is uneffected. What type of symbiotic relationship is this?

• mutualism

• commensalism

• parasitism

Multiple Choice

The oxpecker bird eats bothersome insects off of the skin of the ox and other large animals. What kind of symbiotic relationship is this?

• mutualism

• commensalism

• parasitism

Multiple Choice

Organisms that are capable of making food in their cells are called

• autotrophs.

• heterotrophs.

• biotrophs.

Multiple Select

Why are humans considered heterotrophs (check all that apply).

• we cannot make food in our cells.

• we must consume other organisms for energy.

• we are able to make our own food.

Multiple Select

Which of the organisms below is an autotroph? (check all that apply)

Multiple Choice

What do the arrows in a food chain/web show?

• where the organism was when it was eaten

• the flow of energy

• the direction the predator was moving during the hunt

Multiple Choice

Which option shows the CORRECT path of energy in an ecosystem?

• producers > consumers > sun

• consumers > producers > sun

• sun > producers > consumers

Multiple Select

Which terms below apply to plants and other organisms that can make their own food? (check all that apply)

• heterotrophs

• autotrophs

• producers

Multiple Choice

What is wrong with the food web shown?

• there are too many herbivores

• there are not enough birds

• some arrows point in the wrong directions

Multiple Choice

In an energy pyramid, what organisms should always be on the bottom level?

• producers

• primary consumers

• secondary consumers

• tertiary consumers

Multiple Select

Which organisms in this pyramid are secondary consumers?

• plants

• rabbits

• snakes

• hawk

Multiple Choice

What happens to the amount of energy available at each trophic (feeding) level as you move UP the pyramid?

• the amount of energy increases

• the amount of energy decreases

Multiple Choice

As energy is lost in a food chain, in what form is this energy lost as?

• heat

• light

• sound

Multiple Choice

Which organisms in the energy pyramid shown would get the LEAST amount of energy from their food?

• plants

• squirrels and other herbivores

• snakes and other secondary consumers

• owls and other tertiary consumers

Multiple Choice

In an energy pyramid, which level would you expect to have the SMALLEST number of individuals in its population?

• plants

• primary consumers

• secondary consumers

• tertiary consumers

Multiple Choice

Why are there always fewer carnivores in an ecosystem than herbivores?

• there is more available energy at the herbivore level

• carnivores are always large

Multiple Select

Which populations may be negatively affected if disease wiped out the rabbit population? (check all that apply)

• shrub

• snake

• mountain lion

• hawk

Multiple Choice

Which animal competes with the hawk for a shrew meal?

• snake

• squirrel

• grasshopper

• deer