C. a green parrot has an allele for green feathers and an allele for blue feathers.
B. The area's climate
Specific plants need specific climate conditions in order to survive. The other answer choices have little to no impact on the growth of plants.
The answer would be <span>homeostasis. </span>
The statement is true. Atelectasis is the collapse or closure of a lung resulting in reduced or absent gas exchange. It may effect part or all of a lung. An airway blockage also can cause Atelectasis. A blockage may be due to a foreign object, a mucus plug, lung cancer, or a poorly placed breathing tube from a ventilator. When a blockage occurs, the air that's already in the air sacs is absorbed into the bloodstream.
