Earthworm Anatomy PART 1 (2025-2026)

Which structure is located at the extreme posterior of the worm?

• anus
• mouth
• clitellum
• setae

Which of the following is the worm's main sensory organ?

• prostomium 
• setae
• cuticle
• clitellum

Earthworms have setae, which allow them to ________ more easily.

• move

• eat

• reproduce

• get rid of waste

Earthworms don't have teeth to grind their food so they use another organ to do so. It is called a ___.

• crop
• gizzard
• intestine 
• esophagus 

Tiny opening at anterior end through which food enters

• Ganglia
• Mouth
• Anterior
• Prostomium

Temporary storage area for food

• Crop
• Gizzard
• Pharynx
• Intestine

Digested food is absorbed into the bloodstream 

• Crop
• Gizzard
• Esophagus
• Intestine

Tags

NGSS.MS-LS1-7

Which structure delivers food to the crop?

• esophagus

• mouth

• intestine

• gizzard

How many seminal receptacle pores does the worm have in total?

• 4

• 2

• 1

• 0

All of the reproductive organs that are visible on the surface of the worm's body are located on the _____________.

• ventral side

• dorsal side

• inferior side

• superior side