Answer: They cannot bend or move easily, they are not flexible as normal cells and they can block the blood flow.
Explanation:
Sickle cell or sickle cell disorder( SCD) is a group of red blood cell disorders that are inherited and they cannot bend or move easily in a human body.
A Normal cell is round-shaped and normal cells can move through blood vessels. they are carrying oxygen to all parts of the human body and sickle-shaped cells cannot do that. A Sickle-shaped cell can block that blood flow and it can cause many problems and diseases in the human body.
Answer:
The correct answer is b. Alcohol consumption and smoking can affect men's sperm and are associated with known birth defects.
Explanation:
According to different observational studies, it has been concluded that approximately the concentration of sperm in optimal conditions, taking into account its morphology and movements, is reduced by 13% for smokers compared to non-smokers. In addition to 25 other studies of the same type that have been carried out, which lead to the conclusion that the consumption of substances such as alcohol and tobacco, are harmful to male fertility and can also lead to the development of some inherited disorders such as cancer Autism spectrum disorder, among others.
The answer is muscle endurance
