chpt 25 Worms

Which phylum of worms has a bilateral symmetry, one-way digestive system, respiration through skin, hydrostatic skeleton and segmented body?

• Annelida
• Platyhelminthes
• Nemotoda
• Nemertea

A stiff hair, bristle or bristle like process or part on an organism

• Ganglia
• Setae
• Parapodia
• Nephridia

Which structure is NOT associated with digestion?

• Gizzard
• pharynx
• nephridia
• crop

Which of the following is a thickened segment of the earthworm’s body is used in reproduction?

• Septa
• Setae
• Clitellium
• Ganglia

Which phylum of worms are pseudoceolomates?

• Platyhelminthes
• Nematoda
• Annelida

Which of the following is the evolutionary advancement first found in annelids?

• Three germ layers
• A complete digestive system
• Cephalization
• Coelomates (tube within a tube)

Which of the following phyla contains  mostly parasitic roundworms?

• Annelida
• Cnidara
• Nematoda
• Platyhelminthes

What is structure A?

• flame cell
• pharynx
• ganglion
• ocelli

What is structure D?

• flame cell
• pharynx
• ganglion
• ocelli

Earthworms have setae, which are like bristles that help them ___.

• move
• eat
• reproduce