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What is 1 + 3?
fur, mothers make milk, live born, lungs
wings, 2 feet, feathers, lungs, lay eggs
scales, lungs, lay eggs
live in water then on land, gills then lungs, lay eggs, moist skin
breathe with gills, hatch from eggs, scales
means "to receive from parents"
the body features an animal inherits
body parts that take in oxygen from the water so the animal can breathe
small, thin, flat plates that help protect fish and reptiles
this means an animal is gone forever
a specific type of organism
species that are in danger of becoming extinct
an organism that is on its way to becoming endangered or extinct
evidence of an animal or plant that lived a long time ago on Earth
the process that takes place as a tadpole changes into a frog
ways organisms become extinct
habitat loss, predators, overhunting
prediction based on prior knowledge