The epiphyseal line is the bone marking that results when the growth plate becomes calcified or 'closed.' the line is slightly raised and rougher than the surrounding bone." based on this passage and your knowledge of bone growth, which of the following describes how the epiphyseal plate is replaced by the epiphyseal line?

a. osteoclasts break down the cartilage within the epiphyseal line.
b. osteocytes communicate to the body replace the bone with cartilage.
c. osteoblasts build the bone needed within the epiphyseal line.
d. osteocytes maintain the osteoclasts needed to build the bone.

What is the main structural difference between enveloped and nonenveloped viruses? a) enveloped viruses have their genetic material enclosed by a layer made only of protein.b) nonenveloped viruses have only a phospholipid membrane, while enveloped viruses have two membranes, the other one being a protein capsid.c) enveloped viruses have a phospholipid membrane outside their capsid, whereas nonenveloped viruses do not have a phospholipid membrane.d) both types of viruses have a capsid and phospholipid membrane; but in the nonenveloped virus the genetic material is between these two membranes, while in the enveloped virus the genetic material is inside both membranes.