Section 4.1 Review Quiz

The variety of life on Earth, including, including the variety of Earth's species, the genetic material they contain, the ecosystems in which they live, ecosystem processes such as energy flow and nutrient cycling.

A component of biodiversity that describes both the variety of species present in a specific ecosystem and their abundance within the ecosystem is called:

Rainforests cover only about ______% of Earth’s land surface:

Rainforests contain ________ of the plants

and animals species found on land.

About how many species of organisms have been identified on Earth?

The variety of genes found in a population or species is:

True or False: There is a greater chance that individuals will possess favorable traits needed to survive if they have greater genetic diversity.

What is the is the diversity of Earth’s biological communities, such as lakes, rivers, grasslands, forests, deserts and wetlands known as?

A large number of ecosystems in a geographic region is known as a:

The variety of processes such as energy flow and matter cycling that occur within ecosystems is called: