The alula is a small structure that is found on birds. It is located at the joint between the hand wing and the arm wings of birds and it is the freely moving, first digit of a bird's wing. It is normally used by birds in slow flight. In humans, the structure that is comparable to the alula is the thumb.
B because it sets the scene and describes what it is like!
Answer:
C. lungs
Explanation:
Cystic fibrosis is a genetic disease caused by the mutation in the CF gene located on chromosome 7 which codes for the CFTR protein.
Cystic fibrosis transmembrane regulator protein or CFTR encoded protein regulates the movement of the water and chloride and sodium ions in and out of the cell.
The mutated gene forms abnormal protein which disrupts the movement of the ions and water in and out of the cell.
As a result of thick, the person develops thick and sticky mucus in the respiratory organs, especially in the lungs. Other organs of the body are also affected.
Thus, the lungs are the correct answer.
<span>The movement of material due to differences in density that are caused by differences in temperature is called convection. </span>
You could do a volcano or a rocket ship, or make them bulid atoms,
