Frozen Alive

What is the main topic of the passage 'Frozen Alive'?

• How animals survive in cold regions

• The migration of birds

• The diet of wood frogs

• The growth of plants

Fill in the blank: The wood frog has a unique survival strategy that allows it to

• survive freezing temperatures

• fly long distances

• live underwater permanently

• produce its own food through photosynthesis

What happens to the tadpole as it becomes an adult frog?

• It loses its tail and forms legs

• It grows wings

• It changes color

• It starts to fly

When cold temperatures come, what does the wood frog do?

• It flies south

• It burrows under leaves

• It swims in the river

• It climbs trees

Fill in the blank: The eggs of wood frogs soon ______ into tadpoles.

• hatch

• fly

• bark

• climb

Freezing is deadly to most animals, but for the wood frog, freezing is a good thing.

• True

• False

Look at the diagram and passage. What is the first stage in the frog's life cycle?

• Tadpole

• Egg

• Adult frog

• Frozen frog

According to the passage, what happens to the frog's cells when it freezes?

The wood frog's heart stops beating when it is frozen solid.

• True

• False

What happens to the frog when the temperature warms up?

• The frog stays frozen

• The frog thaws out and its heart starts to beat again

• The frog turns into a tadpole

• The frog lays eggs