Senses And The Nervous System

Question 1

Sensitivity

Answer 1

Dectecting and responding to a stimulus

Question 2

Stimulus

Answer 2

Is something that causes a response e.g. A loud noise stimulates me to jump

Question 3

Lens

Answer 3

Focuses the light onto the retina

Question 4

Iris

Answer 4

Controls the amount of light entering the eye

Question 5

Brain

Answer 5

Sensory nerve send a message to the brain from the sense organ motor