Answer:
Yes.
Explanation:
Yes, both structural mutations and nondisjunction can play an important role in trisomy 21 which also called down syndrome. In this type of syndrome, extra copy of chromosomes is present in the cell. Down syndrome is a genetic disorder that causes various defects in the children such as learning problems, facial features, vision and hearing problems.
Answer:
i am 90% sure it i (A)
Explanation:
rock b is a sedimentary rock most of the time they have fossils
Plant cells contain chloroplasts, which govern the photosynthesis in the cell.
Plant cells also have a large central vacuole, which is necessary to contain the water for photosynthesis.
These both benefit the cell as they provide for photosynthesis.
Answer:
sugars
Explanation:sugers because they are bad to health
Does nature really hurt itself? does nature want to be ruined? if I would be a nature I will kick those people that have nothing to do but hurt me. Pollution is a result of human activities. it is a problem caused by many.
