Energy Flow in Ecosystems & Organisms

What event within the food chain might lead to the graph shown below?

A disease in the population of rabbits.

What most likely caused the rabbit population to decrease over the first time unit shown in the following graph?

A higher than normal population of snakes.

What is an example of bacteria and fungi?

Detritivores

Cellular respiration occurs in nearly all living cells. It is essential to life because it

Releases Energy

In the stable food chain shown below, what would you expect to happen initially if you were to suddenly double the population of rabbits?

The grass population would decrease. The snake population and hawk population would increase.

If a disease strikes the snake population in the food chain shown, what will be the initial effect on the populations of hawks and rabbits?

The population of hawks will decrease. The population of rabbits will increase.

Trapping has severely reduced the population of rabbits in an ecosystem, as shown in the bar graph below. What is the most likely effect this will have on other organisms?

The snake population will decrease rapidly and the grass population will increase rapidly.