The cells responsible for bone resorption are
osteoclasts
osteoblasts
fibroblasts
osteocytes

osteoclasts

Explanation:

Osteoclast is a cell that makes up the bone matrix, quite large compared to other cells, multinucleated, and is involved in resorption and remodeling of bone tissue. It has a lysosome-rich cytoplasm, numerous mitochondria, and a highly developed Golgi complex.

Although it was once believed that osteoclasts came from osteoprogenitor cells, they are now known to come from bone marrow derived from coalescent monocytes.

mammal

explanation:

osteogenesis imperfecta (oi) refers to a congenital ailment of bones. in the condition, the bones become brittle or fragile. this ailment is a general result of the defect or mutations in the genes (colia1 or colia2). this mutation results in imperfect collagen formation either in quantity or quality wise.  

there are eight kinds of oi defects, and each kind varies with certain distinctions in symptoms. the usual symptoms include frequent bone fractures, loss of hearing in infants, protruding eyes, discoloration of the white in the eyes, respiratory issues, loosening of the joints, short stature, and other symptoms.