Which statement about mal-nutrition-induced night blindness is most accurate?
a) the impaired vision is caused by reduced cone function.
b) vitamin supplements can reverse degenerative changes.
c) the most common cause is vitamin d deficiency.
d) visual pigment content is reduced in cones more than rods.

C) vitamin supplements can reverse degenerative changes

Explanation:

Vitamin A is required for the formation of light-sensitive pigments in photoreceptors of the retina. Prolonged vitamin A deficiency causes a much-reduced level of rhodopsin resulting in night blindness. Also called nyctalopia, night blindness is an inability to see well at low light levels. Some of the rich sources of vitamin A are cod liver oil, milk, broccoli, eggs, etc. However, taking supplements and eating vitamin A rich food in the diet can reverse the condition.

1. a host loses nutrients to a parasite

2. a parasite only benefits when the host is alive (cause if the host dies the parasite dies with it )

3. producers to consumers

4. the tapeworm is a parasite

5. they convert energy from the sun (photosynthesis)

6. sunflower-robin (i think im 80% sure)

7. producer

8. consumer

9. prey

10. fresh water snails ( cause the green algea is the producer and the snails are the primary consumers and the small fish consumer so is the big fish)

the answer is a) cell division.

hope this !