module 12 Flashcards
molt
shed an outer covering so that it can be replaced with a new one
cephalothorax
the head and thorax are fused together in one piece we call this section a
antennae
in the head region provide touch taste and smell sensations
compound eye
an eye made of many lenses each with a very limited scope
simple eye
an eye with only one lens
open circulatory system
system allows the blood to follow out of the blood vessels and into bowl under the heart to be drawn back into circulation
crayfish
ANIMAL
ARTHROPOD
CRUSTACEA
swimmeret
aid in swimming and reproduction
male: : first and second ones transfers sperm to female while mating
female: : carry both the eggs and the developing offspring
cheliped
“claws” used for defence as well as to grab onto prey
exoskeleton
an outer body covering, typically made of chitin, that provides support and protection
antennules
small antennae aid the creature in balance and provide taste and touch
green gland
cleans the blood of impurities and dumps them back into the surroundings (acts as a kidney)
mandible
jaw to break the food into small chunks
maxillae
keep water flowing through the gills and help crayfish handle food
chitinous teeth
found in stomach of crayfish used to grind up food
