Question | Answer |
mollusk | animals such as clams, snails, slugs, scallop, conchs, nautilus, squid, oysters, mussels, and octopuses |
siphon | it is part of an octopuses' jet propulsion where an octopus forces water through a muscular tube to move quickly through water; it is the name for the clam's feeding system as they filter food from the water |
water vascular system | a series of canals and tubules in echinoderms;used for movement and feeling |
metamorphosis | a changing of an animal's shape or form as the animal develops into an adult; complete has four stages : egg, larva, pupa, adult; incomplete has 3 stages lacks pupa stage. |
echinoderms | a spiney skinned invertebrate that lives in the ocean e.g a star fish, sea urchin, or sand dollar |
arthropods | phylum that has the most animal species; have 3 body parts and have 3 pairs of legs; insects that play a role in our world |
molt | means to shed scales, feathers, fur and exoskeleton |
nymphs | the immature stage of an insect with incomplete metamorphosis |
Cephaloda | Marine animals, most without a shell but have tentacles. |
Ink & Siphons | the way octopuses escape |
Mantle | soft thin skin over the clams body, part of the claims body that manufactures the materials for the shell |
3 invertebrates we are learning in this chapter | mollusks, arthropods, echinoderms |
Compound eyes | special eyes insects have |
Crustacea | Inveretbrates with 2 body parts and 3 pairs of legs. Fresh water, marine or terrestrial |
An octopus does not die if it loses an arm | true |
Muscular feet | what clams use to move themselves through the sand so they can obtain food by filtering it from the water |
Open circulatory system | Lacks capillaries, type of system a grasshopper has |
excretory tubules | removes wastes from an insects blood |
exoskeleton | an arthropod's muscles are attached to the inside of this |
larva | caterpillars and grubs are example of this stage |