Please enable JavaScript.
Coggle requires JavaScript to display documents.
Invertebrate: Animals that do not have a backbone (Sponges: (Asymmetrical…
Invertebrate:
Animals that do not have a backbone
Sponges:
Asymmetrical invertebrates
No tissues or organs, but specialized cells
Stay in one place
Take food into their body for energy
Cnidarians:
Invertebrates that have stinging cells and take food into the central body cavity
Have radial symmetry
Have some tissues, but no organs
Worms:
Three major groups of worms are: Roundworms, flatworms, and segmented worms.
All have bilateral symmetry
Also have tissues, organs, and organ systems
Invertebrate's characteristics are:
Do not have backbones
96% of animals are invertebrates
Live in every climate
Mollusks
:
Soft and unsegmented bodies
Often protected by a hard shell
Thin layer of tissue, called a mantle, that covers their internal organs
There are three major groups: Gastropods, Bivalves, and Cephalopods
Arthropods:
Invertebrates that have hard outer coverings
Segmented bodies
Pairs of jointed appendages
The outer covering is called exoskeleton
Echinoderms:
An inveterate that has an internal skeleton
Has a system of fluid filled tubes
Internal skeleton is called endoskeleton
Have radial symmetry