If the allantois failed to develop in a bird egg, the most likely result would be that the embryo would be unable to break out of the egg
a placenta would not develop
the process of gas exchange and excretion would be affected
food could not be transported to the embryo
the embryo would not be protected from its environment

. ph changes the ability of them he enzyme to dissolve in water.

air enters through the nose, moves through the nasal cavity, the pharynx, the larynx, enters the trachea, moves through the bronchi andbronchioles till the alveoli.

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.  

options?

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