Answer:
See the answer below
Explanation:
Person X is feeling a burning sensation in several muscles<u> because of the accumulation of lactic acid due to inadequate oxygen in their system.</u> When oxygen becomes inadequate during exercises, anaerobic respiration takes place to augment the oxygen shortage and this leads to the production of lactic acid which accumulates up in the muscles and gives a burning sensation.

Person Y does not feel any burning sensation in their muscles <u>because oxygen is adequate in their system and they do not need to respire anaerobically.</u> <em>Person X exercise regime must have been more rigorous than that of person Y.</em>
NSF international because it’s the public health and safety organization
Answer:
3 one
Explanation:
chloroplasts
is located inside the cells
Answer:
Muscular Dystrophy : 50%
Breast cancer: 50%
Explanation:
Muscular Dystrophy (linked to X):
1/2 (mother) x 2/2 (father) = 2/4 (50%) chance of having an affected child with MD
Breast cancer (autosomal dominant disorder):
1/2 (mother) + 0 (father) = 1/2 = 50% chance of having an affected child with breast cancer