a gas produced by plants during photosynthesis that animals use to breathe
a gas produced by animals during breathing that plants use for photosynthesis
the movement of carbon dioxide and oxygen on Earth through plants and animals
the tiny plant inside a seed
the structure where food is stored
the series of distinct stages of life that most organisms grow and mature through
a change in the shape or characteristics of an organism's body as it grows
a life cycle with four stages
a life cycle with three stages
the first stage of metamorphosis
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