Biology- Coordination

Question 1

Cornea

Answer 1

protects and allows light to enter the eye

Question 2

Iris

Answer 2

Controls quantity of light netting the eye

Question 3

Pupil

Answer 3

Allows light to enter through eye

Question 4

Lens

Answer 4

Focuses light on the retina

Question 5

Retina

Answer 5

Light sensitive layer.light converted into nerve impulses

Question 6

Fovea

Answer 6

Depression in retina where vision is most accurate

Question 7

Blind spot

Answer 7

Where optic nerve enters eye. No light receptors

Question 8

Optic nerve

Answer 8

Caries nerve impulses from retina to brain

Question 9

The Central Nervous System (CNS)

What does it do,and what is it made up of?

Answer 9

Collects information from the senses and send it to the brain

The brain and spinal cord

Question 10

Name all. The ear parts

Answer 10

Ear drum,middle ear bones(hammer,anvil,stirrup),cochlea,auditory nerve and semi circular canals

Question 11

Is judgement of sound better with one ear or two?

Answer 11

Two

Question 12

What is the nervous system composed of?

Answer 12

The brain,spinal cord and nerves

Question 13

What do nerves do?

Answer 13

They carry info from the senses to the CNS and from the CNS to the muscles

Question 14

What does the CNS do?

Answer 14

Sorts out info from the senses and sends messages to the muscles which make the right response

Question 15

Percentage change

Answer 15

%change= change
———- X100
Original