Contains receptor cells called rods and cones. These are sensitive to colour and light intensity.
Oops!
Check
Okay!
Check
15
What is homeostasis?
The maintenance of a constant internal environment.
Oops!
Check
Okay!
Check
15
Explain the iris reflex in very bright light.
In very bright light a reflex is triggered to make the pupil smaller. The CIRCULAR muscles CONTRACT and the RADIAL muscles RELAX.
Oops!
Check
Okay!
Check
15
Name some methods by which scientists study the brain.
MRI, Electrical stimulation, Studying patients with damage to their brain.
Oops!
Check
Okay!
Check
lifesaver
Give 25 points!
Oops!
magnet
Take 25 points!
Okay!
fairy
Take points!
5
10
15
20
25
baam
Lose 10 points!
Oops!
15
Name the hormone that is released if blood sugar is too high.
Insulin
Oops!
Check
Okay!
Check
monster
Reset all scores!
Oops!
gold
Win 50 points!
Okay!
shark
Other team loses 15 points!
Okay!
lifesaver
Give 20 points!
Oops!
monster
Reset all scores!
Oops!
fairy
Take points!
5
10
15
20
25
gift
Win 15 points!
Okay!
baam
Lose 20 points!
Oops!
15
What does ethene do?
Stimulates the ripening of fruit.
Oops!
Check
Okay!
Check
15
What is the body's core temp?
37 degrees Celsius
Oops!
Check
Okay!
Check
15
What is long sightedness (hypermyopia)? How is it treated?
People are unable to focus on near objects. This occurs when the lens doesn't refract the light enough or the eyeball is too short. The image is broug...
Oops!
Check
Okay!
Check
15
What is a relay neurone?
Neurones that carry impulses from the sensory neurone to the motor neurone.
Oops!
Check
Okay!
Check
15
What is the lens?
Focuses the light into the retina
Oops!
Check
Okay!
Check
15
Evaluate the benefits and risks of procedures carried out on the brain and the nervous system.
See an expert-written answer!We have an expert-written solution to this problem!
Oops!
Check
Okay!
Check
15
What does gibberellin do?
Stimulates seed germination, stem growth and flowering.
