Nematode General

Round worms belong in the phylum

• Nematoda

• Cestoda

• Platyhelminthes

• Annelida

Roundworms have a false body cavity called

• pseudocoelom

• acoelom

• eucoelom

• coelom

Roundworms exchange gases in circulation, respiration and excretion by

• diffusion

• osmosis

• regeneration

• heart, lungs, and bladder

Female worms are generally larger

• true

• false

Tags

NGSS.MS-LS1-5

What habitats are Nematodes found in?

• only fresh water

• only terrestrial (land)

• almost all habitats

• only marine (saltwater)

The order of the nematode body wall from outside to inside is

• cuticle-longitudinal muscles-hypodermis-pseudocoel

• pseudocoel-longitudinal muscles-cuticle-hypodermis

• hypodermis-cuticle-longitudinal muscles-pseudocoel

• cuticle-hypodermis-longitudinal muscles-pseudocoel

Nematodes have a _____ digestive system

• incomplete

• complete

• external

• longitudinal

Nematodes are protected by an outer, non-cellular layer known as a _____.

• auricle

• pharynx

• coelom

• cuticle

Tags

NGSS.MS-LS4-2

Nematodes only possess _____ muscles

• circular

• anterior

• posterior

• longitudinal

Nematodes are typically

• dioecious

• monoecious