Science Chapter 3, Section 4, and Chapter 4, Section 1

6 terms by deeptisailappan

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reptile

an ectothermic vertebrate that has lungs and scaly skin

urine

liquid waste that is produced in the kidneys

bird

an endothermic vertebrate with feathers and a four-chambered heart

contour feathers

large feathers that give shape to a bird's body and help with flying

down feathers

feathers that trap heat and keep a bird warm

insulator

material that helps to keep something warm

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