•Variation. Organisms (within populations) exhibit individual variation in appearance and behavior. ...
•Inheritance. Some traits are consistently passed on from parent to offspring. ...
•High rate of population growth. ...
•Differential survival and reproduction
Answer:
The correct option is D
Explanation:
A male sperm needs a x chromosome and y chromosome , whereas a female sperm needs 2 x chromosomes , Thus both genders needing x chromosome
c. It never changes during the experiment.
Myasthenia gravis and bell’s palsy have no cure