Question

Raul scraped his knee and noticed that after a week, it had almost completely healed. Raul wondered how the skin was able to repair itself while looking the same as his non-injured skin. How does mitosis play a
role in Raul's skin healing? (1 point)

Mitosis sends signals to the bone marrow to create more blood cells.

O Mitosis produces identical skin cells which replace the cells that were damaged.

Mitiosis sends pain signals to the brain so Raul knows he has an insury.

O Mitosis cleans the wound so that Raul doesn't get an infection.

What causes Raul's damaged cells to be replaced by skin cells rather than heart cells or brain cells? (1 point)

Cell identification

Cell integration

Cell specialization

Cell inheritance

Answer 1

1) Mitosis produces identical skin cells which replace the cells that were damaged.
(Healing involves cells dividing to make more of the same type of skin cells.)

2) Cell specialization.
( differentiated skin cells divide to make more skin cells rather than heart or brain cells.)