Test: 4th Grade Science

1.

Tiffany, Adam, and Jacob were arguing about how animals survive.  Tiffany says that animals have external structures (or features) that allow them to survive. Adam says that animals have internal structures (or features) that will enable them to survive. Jacob said they have both.

Who is correct, and why?

Adam is correct because animals only have interior structures that help them survive, like the lungs we use to breathe.

Jacob is correct because animals have both exterior and interior structures that help them survive, like lungs and a trunk.

Tiffany, Adam, and Jacob are all incorrect. Animals do not have internal or external structures that help them survive.

Tiffany is correct because animals only have exterior structures that help them survive, like an elephant's trunk.

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