Neurotransmitters is your answer.
The advantages of artificial blood are as follows -
a) It is easy to produce large amount of artificial blood and thus it helps in reducing the blood shortages.
b) The chances of spreading a disease through blood are also reduced as the blood is made in a safe and secure place. Also the full history of artificial blood is known to the doctors.
Exons, because they are the only coding regions in the DNA.
Hope this is helpful!
The answer is C.
Monogamy: when one male breeds with only one female for life.
polygyny: where one male mates with multiple females.
