Compared with the background rate of extinction, currently:

What is the BIGGEST human-caused threat to biodiversity?

Phytoplankton live on the ocean surface, capturing sunlight and converting it to energy. Tiny shrimp eat the phytoplankton as a food source. Small fish eat the shrimp as food. The interaction between the phytoplankton, shrimp, and fish is a good example of:

Which factors are considered to be parts of an ecosystem?

Compared with the background rate of extinction, currently:

Which example is NOT a part of critical thinking?

The length of time nutrients spend in a sink (or reservoir) is called the _____ time.

Populations that have a _____ range of tolerance and are _____ genetically diverse have a greater chance of surviving a change to their environment.

Which statement is NOT true of endemic species?

Which factors are considered to be parts of an ecosystem?