|The ____ of a butterfly is an example of metamorphosis.
|Female kangaroos carry their young in a ____.
|An ostrich ____ can weigh up to four pounds.
|Some animals use ____ to blend into the background.
|All insects have a three-part body: head, thorax, and ____.
|Some swifts use their gummy ____ to build their nests.
|A seed contains a plant ____.
|The study of plants is called ____.