Reproductive isolation is the process to keep away two various species from mating with each other. An example is two fish species from the sticklebacks family. One species lives in fresh water all year while the other one lives in the sea during winter and goes to rivers to produce their offspring every spring and summer. This is specifically called temporal isolation.
Answer:
Its a male, without down syndrome
Explanation:
The fact that it's a male is indicated from the presence of the Y chromosome. In order for this man to have down syndrome, he would have had 3 chromosomes at 21, which he doesnt, meaning he doesnt have down.
Immunosuppressants, by it's name itself, suppresses or inhibits the immune system for functioning in a certain amount of time. It is administered usually during transplant surgeries, so that the new cells of the organ does not get killed by the recipient's immune system.
They are called abrasion.