Responding To Environmental Changes Flashcards
1
Q
Why do animals respond to stimuli?
A
To survive
2
Q
What type of neurones take impulses from receptors to the CNS?
A
Sensory neurones
3
Q
Where are light receptor cells found in the eye?
A
In the retina
4
Q
What is a stimulus?
A
A change in the environment of an organism
5
Q
What is the benefit of simple reflex responses?
A
Improve the chance of survival
6
Q
List two reflexes found in humans of all ages:
A
Picking up a hot object - they drop it
Very bright lights - pupils contract
7
Q
List three reflexes only found in newborn babies:
A
Automatic suckle
Grasping
Take steps on flat surface
