PT4 L6H NATURE SPEAKS

A "tail-wagging" dance indicates that the bee ___.

• finds food

• faces some danger

• is about eighty metres away

• is about eighteen metres away

Plants send out ___ signals to communicate.

Caterpillars worst enemies are ___.

Some trees can send out some signals of danger to other trees, if they are attacked by ____.

If an ant finds some food, it rubs its ___.

Ants have ___ ___ in the glands.

• twelve chemicals

• ten chemicals

• chemical poison

• twenty chemicals

Ants can send alarm signal, invite friends to eat, organise a military campaign. It depends on ___.

• the amount of chemicals

• the type of chemical

• the amount and the type of chemical

• the ants mood

Cuttlefish has the best ___ skills.

Cuttlefish can change colour with the help of ___.

• their brain

• their heart

• their movement

• their nervous system

A male cuttlefish wants other males to stay away. It uses a ___ pattern.