OD4 Unit 11

This is a slimy fluid that we find in our noses.

• mucus

• influenza

• common cold

• skin

Every part of our body is made up of tiny ___.

• viruses

• cells

• bacteria

• scrapes

Choose the correct word.

• immune

• influenza

• disease

• infect

Choose the correct word.

• immune

• influenza

• disease

• virus

Choose the correct word.

• bacteria

• influenza

• disease

• virus

Viruses may be small, but they can cause many kinds of ____.

• bacteria

• diseases

• scrapes

• cells

This virus can paralyse people it infects.

Bacteria are smaller than cells and bigger than viruses.

• True

• False

The influenza virus causes the common cold.

• True

• False

How does our body fight viruses? (There are three correct answers)

• red blood cells

• white blood cells

• mucus and nose hair

• bacteria

• skin