Biodiversity Posttest Review

Which of these is false?

An organism's JOB in an ecosystem is called its:

Which of the following are benefits to having a lot of biodiversity on Earth?

If only ONE species is reduced in numbers or becomes extinct the ecosystem can fail

Scientists believe earth's biodiversity is being threatened by human development.

Identify the biotic factor

Identify an example of a 2nd level consumer form the food web image:

What role to earthworms play in an ecosystem?

The PLACE where an organism gets what it needs to survive is called its:

Where on earth would you find the most biodiversity?

Earth has experienced several mass extinctions in the past.

5th level consumers are not common. How many pathways are there to a 5th level consumer?

Earth's biodiversity has increased and decreased over geologic time

Identify the abiotic factor

How are humans impacting biodiversity?

This organism is responsible for using the sun's energy to create its own food.

Identify an example of a 1st level consumer from the food web image:

What does the term biodiversity mean?

Identify an example of a 3rd level consumer from the food web image:

This organism gets its energy from breaking down dead organisms.

Scientists believe in a new geologic time period due to increase in extinctions called the ___.