Answer:
<em>The correct option is C) C-shaped cartilage rings </em>
Explanation:
The trachea is commonly known as the wind-pipe. The trachea can be described as about a 4 inch long passage from which the air travels into the bronchi and lungs. The pathway of the trachea is kept open by C- shaped cartilages which are lined all over in the trachea. The C-shaped cartilages protects as well as maintain the shape of the wind-pipe. The rigidity of the trachea arises from the C-shaped cartilages.
Answer:
If these were the missing choices:
A) Positive, since it is needed for the local bird population.
B) Negative, since it is destroying much of their environment.
C) Positive, since it is a sustainable plan to use a renewable resource.
D) Negative, since it is a sustainable plan to use a renewable resource.
My answer would be: C) Positive, since it is a sustainable plan to use a renewable resource.
Renewable source is defined as resources that can be replenished overtime by natural processes. Farming trees is one of the processes that produces renewable sources.
The population of predators will increase first and then decrease slowly
