Which statement correctly compares red bone marrow and yellow bone marrow? red bone marrow makes cartilage, and yellow bone marrow makes fat cells. red bone marrow makes blood cells, and yellow bone marrow makes cartilage. red bone marrow is found in the periosteum, and yellow bone marrow is found in spongy bone. red bone marrow is found in compact bone, and yellow bone marrow is found in the periosteum.

Red bone marrow makes blood cells, and yellow bone marrow makes cartilage.  

Explanation:

Strictly speaking, yellow bone marrow no longer produces blood cells in adult subjects. This function is restricted to only a few bones that have red marrow. In newborns, most bones are filled with large amounts of red marrow, the only structure capable of producing blood cells.

The red coloration is due to the high number of red blood cells in formation at the site. Over the years, most of the marrow is losing its function. It becomes greasy and yellowish, receiving the name of yellow marrow.

find the surface area of the sphere to the nearest square unit. use a calculator.

a. 254 in.2

b. 64 in.2

c. 127 in.2

d. 1,018 in.2