Animals/Worm Review

What is a unique feature of the digestive system of earthworms?

• They have a single stomach.

• They have a crop and gizzard.

• They have a beak.

• They have a rumen.

Organisms that cannot make their own food are called

• heterotrophs
• autotrophs
• producers
• sessile

What type of symmetry does this organism have?

• Asymmetry
• Radial
• Bilateral

Animals are

• all unicellular
• all multicellular
• mostly unicellular
• mostly multicellular

What do earthworms use to move and hold onto soil?

• Fins

• Setae

• Tentacles

• Cilia

What type of symmetry does the organism have?

• Asymmetrical

• Radial

• Bilateral

How do earthworms breathe?

• Through lungs

• Through gills

• Through skin

• Through spiracles

Place where food enters the digestive system of the worm

• anus

• mouth

• nephridia

• pharynx

How many aortic arches does a worm have?

• 1

• 3

• 5

Place where waste exits the worm

• anus

• mouth

• nephridia

• pharynx