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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. |