Question | Answer |
What are the characteristics of mollusks? | soft body covered by shell, mantle, foot, bilateral, open circulatory system, gills with cilia, invertebrates, two-way digetive system |
What are the characteristics of bivalves? | 2 shells, omnivore, slow, watery environments |
What are the characteristics of cephalopods? | no shell, closed circulatory system, carnivore, large eyes to see, large brains- they remember things and are smart, jet propulsion |
What are the characteristics of gastropods? | stomach-footed, herbivores, carnivores, radula |
What are the characteristics of arthropods? | jointed legs, invertebrates, external skeleton, segmented body, appendages, major groups: crustaceans, arachnids, centipedes/millipedes, insects |
What are the characteristics of millipedes? | more than 80 segments, 2 pair of legs on each segment, scavengers |
What are the characteristics of centipedes | more than 100 segments, 1 pair of legs on each segment |
What are the characteristics of insects? | 3 body sections, 6 legs, 1 pair of antennae, 1 or 2 pairs of wings |
What are the benefits of mimicry or camouflage (ex: walking stick)? | if it is prey, predators will ignore or not notice it |
What are the different types of metamorphosis? | complete, gradual/incomplete |
What are the stages in complete metamorphosis? | egg, larva, pupa, adult (ex: beetles, butterflies, flies, ants) |
What are the stages in gradual metamorphosis? | egg, nymph, adult (ex: grasshoppers, termites, cockroaches, dragon flies) |
What is a radula? | a flexible ribbon of tiny teeth to obtain food found in gastropods (snails/slugs) |
What is a larva? | the immature form of an animal that looks very different from an adult (used in complete metamorphosis) |
What is a pupa? | the third stage of complete metamorphosis in which an insect changes from a larva to an adult |
What is an echinoderm? | invertebrates with an internal skeleton and a system of fluid-filled tubes called a water vascular system that live in salt water |
How does a grasshopper get oxygen? | |
What are the insect mouthparts? | lapping mouthparts (fly), sucking mouthparts (butterfly), chewing mouthparts (ant) |
How can each mouthpart be used? | lapping- lap up decaying flesh
sucking- coiled tube, used as a straw
chewing- sharp edge cuts through food |
What are the differences between an insect and an arachnid? | insect- three body sections, wings, antennae, six legs
arachnid- two body sections, eight legs, no antennae, no wings |
What are the kinds of symmetry? (study notes) | bilateral, radial |