Biology Revision

Scientists use a key to help _________ animals and plants based on their characteristics.

Which characteristic might help identify a tree in a key?

• The color of its leaves

• The shape of its leaves

• The size of its roots

• Its height

A key is a tool that helps us identify objects, animals, or plants based on certain features.

• True

• False

A key can use the shape of an animal's ___________ to help identify it.

Living things grow, eat, move, and reproduce.

• True

• False

Which of these is a non-living thing?

• A tree

• A rabbit

• A rock

• A mushroom

A _______ is a sign that something was once alive.

All living things cannot breathe.

• True

• False

Which of these items was once alive?

• A plastic cup

• A wooden chair

• A metal spoon

• A stone

Which habitat would a polar bear most likely live in?

• Arctic tundra

• Desert

• Rainforest

• Grassland