EnviSci Unit 8 Section 1

Multiple Choice

How many different species are known to science and what types of species make up the majority?

• 17 million; insects

• 1.7 million; insects

• 17 million; bacteria

• 1.7 million;

Open Ended

How does a species become "known" to science?

Fill in the Blanks

There are three levels of biodiversity.

diversity