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Science lesson 38
November 17
Question | Answer |
---|---|
mollusk | invertebrates w/ soft, unsegmented bodies that are often protected by a shell. |
open circulatory system | blood that is not always inside their blood vessels. |
gills | organs that remove oxygen from the water. |
gastropods | the largest group of mollusks |
herbivores | animals that only eat plants |
carnivores | animals that only eat meat. |
radula | a flexible ribbon of tiny teeth. |
bivalves | second largest group of mollusks |
omnivores | animals that eat both plants and meats |
cphalopods | octopuses and squids |