Arthropods & Echinoderms
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Created by:
josh4baseball on January 31, 2011
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32 terms
Terms | Definitions |
|---|---|
 3 characteristics shared by all arthropods | exoskeleton, segmented body, jointed appendages |
| exoskeleton | rigid outer covering |
| molting | the arthropod's protective suit must be shed and replaced from time to time |
| an arthropod's blood carries | food throughout its body |
| oxygen is carried to all the cells in an arthropod's body by | gills, book lungs, and/or a system of air tubes |
| crustacean | an arthropod that has a hard exoskeleton, 2 pairs of antennae, and mouth parts that crush and grind food. some can regenerate certain parts of their body. |
| crustaceans include | crabs, lobsters, barnacles, and shrimp |
| most crustaceans live in | watery environments and get oxygen through gills |
| centipedes | have one pair of legs in each segment are carnivores, inject poison using their claws not waterproof |
| millipedes | have 2 pairs of legs in each segment live on plants not waterproof |
| insects | body divided into 3 parts: head, chest, abdomen. 3 pairs of legs attached to the chest |
| metamorphosis | a dramatic change in form |
| larva | insect in its earliest stage after hatching |
| pupa | stage of metamorphosis in which an insect changes from a larva into an adult |
| pheromones | Chemicals secreted by animal species that influence the behavior of other animals of the same species |
| ways an insect attracts a mate | buzz (cicada), light (firefly), pheromone (gypsy moth) |
| insect defenses | stingers, camouflage, eyespots, spray chemicals |
| echinoderms | spiny skin, internal skeleton, 5 part body, water vascular system, and tube feet |
| water vascular system | system of fluid-filled internal tubes that carry food and oxygen, remove wastes, help echinoderms move |
| tube feet | suction-cuplike tube feet |
| complete metamorphosis | Insect development consisting of four stages: egg, larva, pupa, and adult. The transformation of a larva into an adult that looks very different, and often functions very differently in its environment, than the larva. |
| incomplete metamorphosis | A type of development in certain insects, such as grasshoppers, in which the larvae resemble adults but are smaller and have different body proportions. The animal goes through a series of molts, each time looking more like an adult, until it reaches full size |
| book lung | organ that has layers of respritory system stacked like the pages of a book, used by some land arthopods for the exchange of gases |
| air tubes | connect to the outside of the body through wholes in the exoskeleton to get oxygen |
| describe different types of arthropod appendages | the difference are claws, walking legs,antine and wings |
| what is the function of tube feet? | To move and get food |
| how do starfishes move | They use tube feet |
| why are arthropods the most numerous phylum of animals | They reproduce quickly |
| explain why arthropods undergo molting | So they can grow |
| what is the function of a worker bee in the hive? | To get food to the queen |
| what is the function of the queen bee in the hive? | To lay eggs |
| what is the function of the male bee in the hive? | To fertilize the eggs |
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