Question

which of the following words means a small mass within the nucleus? multiple choice nuclear nucleolus osteoclast osteocyte periosteum

Explanation:

The nucleolus is a small dense - staining mass within the nucleus. "Nuclear" relates to the nucleus in a general sense. "Osteoclast" and "osteocyte" are cells related to bone, and "periosteum" is the membrane covering bone.

Answer:

B. nucleolus