An ectothermic vertebrate that lays eggs and has lungs and scaly skin.

An organ that filters waste from the blood.

A watery fluid that is produced by the kidneys that contains waste.

An egg with a shell and internal membranes that keep the embryo moist; a major adaptation to life on land characteristic of reptiles, birds, and egg-laying mammals.

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Chapter 3 Vocab

Chapter 3 Vocab Part 4

Word	Definition
reptile	An ectothermic vertebrate that lays eggs and has lungs and scaly skin.
kidney	An organ that filters waste from the blood.
urine	A watery fluid that is produced by the kidneys that contains waste.
amniotic egg	An egg with a shell and internal membranes that keep the embryo moist; a major adaptation to life on land characteristic of reptiles, birds, and egg-laying mammals.