Arthropods
a body covering, typically made of chitin, that provies support and protection
What is an exoskeleton?
What is fresh water
the body region posterior to the thorax
What is an abdomen?
The arthropods brains are made up of this
Two gagnlia (much like an earthworm)
Arthropods have this type of circulatory system
What is an open circulatory system?
to shed an outer covering so that it can be replaced with a new one
what is molt?
What is Crustacea
the body region between the head and the abdomen
What is the Thorax
What is a ventral nerve cord?
These four groups of arthopods are discussed in moduele 14
scientists estimate there are approximately this many arthopod species
one million
Blood is cleansed from impurities when it passes through this
What is the green gland?
The body of an arthropod is divided into these three segments
What are the thorax, abdomen, and cephalothorax
This organ provides touch, taste, and smell sensations to the nervous system.
What are antennae?
A crayfish can regenerate a lost appendage because of this
What is a double membrane?
The term "arthropoda" actually means this
what is joint-footed
These two appendages are responsible for taste and touch in a crayfish.
What are antennules and antennae
a body region composed of the head and thorax fused together
What is a cephalothorax?
Two different types of eyes in phylum Arthropoda
What are compound eyes and simple eyes?
a general term for the organ that produces gametes
What is a gonad
What are the five common characteristics among arthropods?
What are swimmerets?
Segmentatations allow the exoskeleton to shift with movements of the body. Segments moving back and forth was compared to this
What are joints in armor?
this arthopod has eight simple eyes
What is a spider?
These are examples of other animals from the class crustacea (give at least 2)
lobsters
shrimp
crabs
barnacles