The disease is mainly caused by a lack of a slippery substance in the lungs called surfactant. This substance helps the lungs fill with air and keeps the air sacs from deflating. Surfactant is present when the lungs are fully developed.
https://medlineplus.gov/ency/article/001563.htm
Answer:
I think there is no life in tbe universe accept the earth.
Explanation:
Answer: humans would become weightless, we would be flying super fast across the earth; much like tumbleweeds.
Explanation:
because thats how gravity works.
Answer:
Choice: (A) The herd has reached its carrying capacity because the growth rate is negative.
Explanation:
1. the inheritance of each gene is determined by the units that are passed down 2. an individual will get one unit from each of their parents
3. a trait may not show up on an individual but it can still be passed on to a descendant
