Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Chapter4lesson3
| Term | Definition |
|---|---|
| Exoskeleton | External skeleton; a tough , waterproof outer covering that protects, supports and helps prevent evaporation of water from the body of many invertebrates |
| Endoskeleton | an internal skeleton; structural support system within the body of an animal. |
| What is the basic definition of an invertebrate | an animal without a backbone |
| What are the 8 main groups of invertebrates | sponges, mollusks, flatworms, roundworms, segment worms, cnidarians, arthropods, and echinoderms |
| Sponges | they take in food into their bodies to get energy. |
| Mollusks | they have a shell to protect them from danger, their foot could be used for crawling, digging, or catching prey, or a snail |
| Flatworms | soft bodies, and some have a eye on their head to detect light, or a tape worm |
| Roundworms | their smooth, thin tubes. They also have two body openings, an mouth and an anis, or a round worm |
| Segment worms | they have their body made up of linked sections, they are the simplest animals and they have a brain. the brain helps them detect predators or a earth worm |
| Cnidarians | they are invertebrates. They have stinging cells, and take their food into a central body cavity. They have radial symetrey.An example would be a jellyfish |
| Arthropods | They have hard outer coverings, and pairs of joined appendages. An example would be a spider |
| Echinoderms | Has an eternal skeleton, and a system of fluid-filled tubes.An example would be a sea star. |
Created by:
user-1915585
Popular Biology sets