Animal Phyla : Arthropods

10 terms by michabowler 

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exoskeleton

external skeleton that protects the animal from its environment and other pray. like a shell

invertebrate

a animal that doesn't have a back bone

appendages

legs or antennae that grow out of the body of an animal. they are used for sensing, walking, feeding, and mating.

molting

shedding the exoskeleton and secreting a larger one

head, thorax, abdomen (main body segmentation)

the main body segments of most animals, top, middle, end

cephalothorax

head and thorax fused into one segment, like spiders

tracheal tubes

branching network of hollow tubes that carry air throughout the body

spiracles

openings on the thorax and abdomen that connect to the tubes

ovipositor

a sharp digging structure on the tip of the abdomen used for depositing eggs into plant structures

metamorphosis

the transformation of a larva into an adult

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