Directions: Identify the models in each picture as an element or a compound. and there's more to it just answer the rest pls I need this test done this is my 1 overdue and I'm giving 44 bc i did 100 and i lost my points

idk why hjggjhjkhj

answer: b

coz red blood cells marrow and circulates the body for 120 days.

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.