I believe the answer is d
How this can be prevented/can vaccines help?
What age group is at risk?
Could it be lethal?
Why does this virus happen?
In humans gene flow usually comes about through the actual migration of human populations, either voluntary or forced. Although gene flow does not change allele frequencies for a species as a whole, it can alter allele frequencies in local populations.
Hopefully this helps.
This is called asexual reproduction. Asexual reproduction is when a organism craetes a offspring by itself, it is genetically similar to them.
In<u> asexual reproduction </u>some plants produce offspring which are genetically similar to them.
Glucose + ATP -----> glucose~P + ADP