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What is the name for any animal that does not have a backbone?
Invertebrate
Name 3 examples of invertebrates
Jellyfish, sponges, worms, spiders, starfish, snails, insects, etc.
Many invertebrate have a rigid outer layer called an __________ that protects them, gives them shape, and prevents them from drying out.
Exoskeleton
This is a group of aquatic invertebrates which attach themselves to the floor of the ocean and do NOT move around
Poriferans/Sponges
A type of symmetry where an animals body is divided into 2 equal halves
Bilateral symmetry
A type of symmetry where an animal's body parts are arranged around a central axis
Radial Symmetry
This is when an animal has an irregular shape with no central axis
Asymmetry
A group of aquatic invertebrates that includes jellyfish, sea anemones, and coral
Cnidarians (pronounced Nigh-darians)
A group of invertebrates consisting of worms whose bodies are divided into rings or segments called "metameres"
Annelids
A group of invertebrates whose name means "spiny skin". Star fish and sea urchins are examples
Echinoderms
A group of invertebrates including snails, octopuses, squids, clams, slugs, cuttlefish, and oysters
Molluscs
The largest and most diverse group of animals on earth. This type of invertebrate includes prawns, spiders, and insects
Arthropods
