Earthworm dissection

Earthworms belong to Phylum______________

• Platyhelminthes
• Annelida
• Nematoda
• Mollusca

Earthworm have  _______ symmetry. The left and right side look the same and have similar organs and tissues.

• radial
• assymetrical
• bilateral
• prismatic

The earthworm's body is divided into ___.

• 3 parts
• segments
• circles

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

• move
• eat
• reproduce

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 

An earthworm has both male and female organs. It is known as a ________.

• hermaphrodite
• condaphrodite
• sterile animal

Earthworms eggs are laid .....

• in a soft shell
• in a cocoon of mucus
• in a nest for protection
• in a hard shell

The swollen part of the worm is called the __________. It signals that the worm is an adult and is able to reproduce.

• gizzard
• crop
• clitellum
• segment

Tags

NGSS.MS-LS1-4

Earthworms have a ____ circulatory system 

• open 
• closed 
• false
• transitional

Name the structure identified by the letter I.

• Intestine
• Mouth
• Gizzard
• Aortic Arches