3. Amphibians show clear evolutionary changes as they adapted away from a strictly aquatic life to
a semi-terrestrial existence. Several key characteristics changed in order to enable them to make
this shift. Describe the changes that occurred in the following categories to support their venture
to life out of water:
Explain and diagram their "typical" tetrapod body plan and design
Respiratory system (include structures and process that maximize gas exchange)
Reproduction
Metamorphosis (include how metabolism plays a role in this process)

name and explain one of the event that occurs during meiosis that increases the variation in offspring even more than simple reproduction?

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.