Science

Sending smelly messages when there is shortage of food is the role of ........................

• queen ants

• nurse ants

• scout ants

• solider ants

Humpback whales sing during ................... months, which is the mating season.

• winter

• summer

• spring

• autumn

Echolocation in some animals is the use of .................... pitched sounds for finding food.

• medium

• low

• very low

• high

All the following sentences describe humpback's life, EXCEPT .............................

• they can communicate in cold and warm water

• they mating in winter months

• they have a weak hearing senses

• they communicate with each other through sound

All of the following are from the importance of the nervous system in mammals, EXCEPT ...........................................

• gathering information

• pushing blood through blood vessels

• sending signals to the body parts to react

• translating information

............................. are found on the sensory organs and the first to sense the surrounding environment.

• Nerves

• Sensory receptors

• Brain

• Spinal cord

The heart and eyes are connected to the brain through blood vessels that transmit information in the form of electrical impulses.

• True

• False

The Egyptian gerboa can jump for long distances depending on its long hind leg.

• true

• false

Messages sent by the nervous system that are often so fast that you don't think about them are called reflexes.

• true

• false

You opened the door of your house when you heard the doorbell, which of the following statement explain the sequence of messages inside your body in this situation.

• ears -- brain -- hand

• ears -- hand -- brain

• brain -- ears -- hand

• brain -- hand -- ears