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2023 Biology

Chapter 12 Invertebrates: Animals without Backbones

wordsdefinitions
abdomen in invertabrates, the rear segment of a body.
appendages moveable parts that extend from the body such as, arms, legs, wings, and claws.
arachnids arthropods with four pairs of legs, such as spiders or scorpions.
arthropods animals with exoskeletons, segmented bodies, and joined appendages, such as insects and arachnids.
crustaceans a group of arthropods,such as crabs, and lobsters, that generally live in water.
exoskeletons a tough, stiff, covering around the body of an organism.
host an animal on or in which parasites live.
invertebrates animals without backbones.
mollusks animals with soft bodies that are not divided into segments, such as snails, oysters, and clams. Most mollusks have hard shells.
parasites organisms that live on or inside other organisms causing them harm.
Created by: Mr. L
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