No Backbone, No Problem
Animals without a backbone
What are invertebrates?
Invertebrates that have a soft body and mantle, and can include bivalves, gastropods, univalves, and cephalopods are called _____________
What are mollusks?
What are insects?
Have jointed legs, exoskeletons, and molt
A hard covering that acts like a knight's armor
What is an exoskeleton?
Tiny holes in sponges
What are pores?
These gather food from water that is pumped through pores on the outside of their bodies
What are sponges?
Term for having one shell
What is univalve?
These creatures have two body segments and eight legs
What are arachnids?
These creatures have many body parts and many legs
What are centipedes and millipedes?
Existing independent of another organism
What is free-living?
Have at least five pairs of jointed legs, breath through gills, and have some sort of claw
What are crustaceans?
Hairlike structures
What are setae?
Another name for similar pieces
What are segments?
The middle body part of an insect
What is a thorax?
The term for shedding a skin and grow a new one
What is molting?
Stinging animals use ____________, tiny organelles, to capture their food
What are nematocysts?
These have radial symmetry, live in the water, and move using tube feet
What are echinoderms?
Name two ways insects consume food
What are:
Complete metamorphosis is made up of these four stages
What are: egg, larva, pupa, adult
These creatures have two pairs of leg per segment
What are millipedes?
Term for having two shells
What is bivalve?
Worms contribute to soil improvement because of these two things
Spiders are considered arachnids because of these two things.
Why are eight legs and two body segments?
The other name for sea slugs
What are nudibranchs?