Ecosystems Review

Front

Which organisms would receive less energy if rabbits disappeared from this ecosystem? Options: toads, hawks, snakes, grasses

Back

hawks

Front

What would most likely happen if farmers started using pesticides that killed the insects living above the ground?

Back

the rat population would decrease

Front

Which food chain model shows an example of how energy moves through an ecosystem? (flow left to right)

Back

tree leaves - caterpillar- toucan - puma

Front

A student is developing a model of a prairie ecosystem. Sun -- grass -- ?? -- snake -- owl What organism could the student use to finish their model and replace the ?? Options: aspen trees, buffalo, foxes, prairie dog

Back

prairie dog

Front

How would scientists model a food chain to show the flow of energy in a desert ecosystem? (flow left to right)

Back

Sun -- cacti -- insects -- lizards -- foxes

Front

Here is a model of a food chain in Yellowstone National Park: shrubs/grasses -- elk -- wolves In the past, wolves were hunted to extinction. What was the impact on elk and plants?

Back

there were many more elk and fewer plants

Front

What would happen if fungi were removed from a forest ecosystem?

Back

plant and animal matter would no longer be broken down

Front

What would most likely happen to the populations of organisms in a forest ecosystem if there were no rain for a long period of time?

Back

All the forest populations would decrease because producers would not be able to survive to supply nutrients to consumers.

Front

What part of the forest ecosystem receives energy from the rabbits?

Back

the hawks

Front

What would most likely lead to a decrease in the mouse population? Options: an increase in the number of decomposers, an increase in the deer and frog populations, a decrease in the snake and hawk populations, a decrease in the amount of available sunlight.

Back

a decrease in the amount of available sunlight