Annelids

Which of the following phyla was the first to exhibit body segmentation?

• Annelida
• Arthropoda
• Cnidara
• Echindermata

What class / subclass?

• Oligochaeta 
• Polychaeta
• Hirudinea

What class / subclass?

• Oligochaeta 
• Polychaeta
• Hirudinea

What class /subclass?

• Oligochaeta 
• Polychaeta
• Hirudinea

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

• move
• eat
• reproduce

What do earthworms eat?

• grass
• insects
• dirt
• organic matter in the soil

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-3

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

The leg-like structures seen in polychaetes are called

• Setae
• Parapodia
• Antennae
• Trochophores