Nematode Quiz

About how many species of Nematodes have been described?

• 1 million

• 30,000

• 100,000

• 300,000

What kind of environments do nematodes NOT live in?

• In the deep sea

• In your backyard

• in marine sediments that lack oxygen

• in strands of hair

Fill in the blank:

Nematodes have a _________ that is formed directly from the cavity of the blastula.

• eucoelom

• pseudocoelom

• coelom

• acoelom

You discover a worm that has a bilateral symmetry, lives inside a host or water, and has one digestive opening. Which phylum does this worm belong to?

• annelida

• nematoda

• platyhelminthes

• parasitic worm

You discover that a worm that is transparent under a microscope and analyze that this worm has fast growth, a short life, and is easy to cultivate. You discover that is is a ______.

• nematode

• annelida

• platyhelminthe

• cestoda