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:
If the Earth suddenly had no gravity, the Earth’s atmosphere would float into space. Everything not attached to the Earth would fly off into space. Things like trees and most buildings would remain because they are rooted. Since the Earth, itself, is held together by gravity, it would most probably break apart into chunks and float off.
Explanation:
The immune system.
The immune system acts as a defense system of the body. It fights against bacteria, viruses and any other disease causing pathogens. Some chemicals can weaken the immune system and make them vulnerable.
Answer 1: A. Basic
Answer 2: 1. Cell
Answer 3: O. Organ
Hopefully this helps!! (:
Answer: You will find the pedigree in the attached files
First-generation (Parents):
• Tom: rr
• Diane: Rr
Second generation (Children):
• Anna: rr
• Anna´s husband: Rr
• Mary: Rr
• Mary´s husband: RR, Rr, or rr
• Teddy: Rr
Third generation (Grandchildren):
• Will: Rr
• Vanessa: rr
• Patric: RR or Rr
Explanation:
Due to technical problems, you will find the complete answer and explanation in the attached files
