In many mammals, a developing embryo is nourished through the , is a connection with the mother. Later, a newborn takes in food produced by the of the mother. Unlike a young mammal, an insect or amphibian undergoes which is a series of dramatic changes in body shape and form. PLS HELP

In many mammals, a developing embryo is nourished through the placenta. is a connection with the mother. Later, a newborn takes in food produced by the blood artilleries of the mother. Unlike a young mammal, an insect or amphibian undergoes metamorphosis which is a series of dramatic changes in body shape and form.

is in the form atp or adenosine triphosphate

it takes hundreds of years to become stable.

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