SIMPLE INVERTEBRATES
Animals that don't have backbones.
What is and INVERTEBRATE
An identical, or almost identical, repeating body part.
What is a SEGMENT?
A hard outer covering.
What is an EXOSKELETON?
A hard and bony or stiff and flexible internal skeleton.
What is an ENDOSKELTON?
The simplest invertebrates
What is a SPONGES?
The most familiar annelid worm.
What is an EARTHWORM?
An eye that is made up of many identical, light-sensitive units.
What is a COMPOUND EYE?
Meaning "spiny skinned" due to spines on the animals skeleton.
What is an ECHINODERM?
What is a SPICULES?
The two body forms of Cnidarians.
What are Poly and Medusa
Structures on most echinoderms that allow them to attach themselves to surfaces.
What is tube feet
Invertebrates with stinging cells
Cnidarians/ Coelenterates
The three major classifications of Mollusks.
What are GASTROPODS, BIVALVES and CEPHALOPODS?
The exoskeleton of echinoderms is made from
What is a calcium carbonate?
An organism that invades and feeds on the body of another living organism, or host.
What is a PARASITE?
The 3 body parts of all Mollusks.
What are the FOOT (headfoot), VISCERAL MASS, MANTLE?
The three parts of an insects body.
What are the HEAD, THORAX, and ABDOMEN?
Sea Stars, Brittle and Basket Stars, Sea Urchins and Sand Dollars, Sea Lillies and Feather Stars, and Sea Cucumbers all have a certain type of symmetry.
What is radial symmetry