In the prairie there are many kinds of grasses and other plants that are eaten by grasshoppers and other insects, prairie dogs, and bison. In turn there are many birds that feed on the insects and some hawks that feed on the prairie dogs. The birds use the grasses to build their nests, and bison prefer to feed in areas where prairie dogs have kept the grass short. This is a simplified example of:.
A) an ecosystem.
B) a community.
C) a niche.
D) abiotic factors

i am sorry but i need more information and a picture.

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.  

then go eat. lol.brainliest