Nemata/Nematoda

Roundworms belong to the phylum ...

• Annelida

• Platyhelminthes

• Nematoda

• Rotifera

Which of the following is NOT a characteristic of Phylum Nematoda?

• longitudinal and circular muscles

• complete digestive

• cylindrical body

• flexible non living cuticle

Which of the following would a free living roundworm most likely eat?

• protozoans

• dirt

• blood

• bacteria

In most nematodes

• the sexes are separate

• male and female organs are found in the same organism.

• they are monecious

• none of these.

Which of the following structures is/are not found in roundworms

• pharynx

• mouth

• flagella

• rectum

There are approximately _____ identified nematodes.

• 25, 000

• 2,500

• 2.5 million

• 2.5 billion

Which adjective would best describe the way roundworms move?

• thrashing, wriggling, or wiggling

• crawling

• inch worm like

• looping

"a condition in which a constant number of cells or nuclei are found in each species. ?

• eutely

• pseudoly

• cutely

• lutely

Due to the fact that nematodes infect large numbers of animals and plants they are economically important ....

• parasites

• decomposers

• top level producers

• symbiots

Predatory nematodes would eat all of the following except:

• human flesh

• rotifers

• tardigrades

• small annelids