Biology should be the answer
Answer:
traits that hinder survival eventually disappear
Explanation:
living things adapt to their surroundings
Answer:
8<3x
Explanation:
< is a symbol of less than and when you multiply 3 by x the answer is 3x so 8<3x
Answer:
The mitochondria is the powerhouse of the cell
Answer:
prevents secretion of upper air passage
Explanation:
to prevent foods and drinks from falling down the airway which is called aspiration and may lead to pneumonia