Whales & Dolphins Are Mammals

Question 1

Which two things show that whales and dolphins are mammals, not fish?

Accepted Answer

They breathe air and their babies drink milk.

Answer

They have fins and lay eggs.

Answer

They live in water and have gills.

Answer

They are cold‑blooded and have scales.

Question 2

Which two facts show that a whale (or dolphin) is a mammal, not a fish?

Accepted Answer

It breathes air and its babies drink milk.

Answer

It has a smooth, slippery skin and lives in the ocean.

Answer

It lays eggs and has gills to breathe underwater.

Answer

It can swim very fast and jumps out of the water.

Question 3

Lila is putting pictures of sea animals into two groups: mammals and fish. She looks at a picture of a whale. Which description lets her correctly place the whale in the mammal group?

Accepted Answer

The whale breaths air through a blowhole and its baby drinks milk from the mother.

Answer

The whale has gills and lays eggs.

Answer

The whale swims fast and has a smooth, shiny fin like a fish.

Answer

The whale lives in the ocean, so it must be a fish.

Try three questions

Which two things show that whales and dolphins are mammals, not fish?

Which two facts show that a whale (or dolphin) is a mammal, not a fish?

Lila is putting pictures of sea animals into two groups: mammals and fish. She looks at a picture of a whale. Which description lets her correctly place the whale in the mammal group?

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