Is organisms within a population must compete for resources to survive true or false

true

Explanation:

Organisms within a population must compete for resources to survive. T: The least-equipped organisms may not survive. ... -A process by which an organisms better adapted to their environment tend to survive, reproduce, increase in number, and pass their traits to succeeding generations.

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.  

for a different answer set the answer would be because the oxygen in the water had depleted (apex)