Crayfish

What are crayfish?

• mammals
• amphibians
• crustaceans
• none of these

Where do crayfish live?

• salt water
• land
• trees
• fresh water

Tags

NGSS.MS-LS2-1

Crayfish are omnivores. What does that mean?

• They eat plants and animals.
• They eat only plants.
• They eat only animals.
• They don't eat.

What is it called when crayfish lose their shell and grow a new one?

• changing shells
• growing
• jointed
• molting

The process of re-growing lost body parts such as pincers and walking legs.

• hibernation
• regeneration
• molting
• respiration

Tags

NGSS.MS-LS1-5

Crayfish are water breathers. They can stay out of the water for short periods of time if...

• they are looking for a mate
• they are looking to hibernate
• it's time to molt
• their gills stay wet, so they can breathe

Why do crayfish molt?

• the exoskeleton is hard and gets broken
• they like to molt so they are soft
• as a crayfish grows the exoskeleton doesn't grow so it must be replaced.

Since crayfish live in water, they breathe with lungs.

• True
• False

the hard, protective covering which supports an arthropod

• abdomen
• environment
• exoskeleton

Identify #1 structure

• antennae

• cephalothorax

• chilapeds

• walking legs