Adisease that results from damage to cartilage in the joints is
(a) sprains.
(b) rheumatoid arthritis.
(c) osteoarthritis.
(d) bursitis.

Rheumatoid arthritis.

Explanation:

Rheumatoid arthritis is a long term disease associated with the immune system. It is an auto immune disorder that affects the joints of the body.

The symptoms includes warm swallow and painful joints. In case of this the cartilage is damaged and in later stages bones and ligaments are also damaged. The damage to joints occurs in the early stages of this disease and it is progressive.

Hence, the correct answer is option B

the father in the first generation probably had the recessive colorblind trait in his x chromosome. if he and his wife both had the colorblind trait, even if she had 1 recessive and 1 dominant, then that trait would be passed on to their kids.

(since you didn't attach the family tree this is just an assumption)

atp is used for energy.