Answer:
23 chromosomes from father
23 chromosomes from mother
46 chromosomes in total
C is your answer..............
Mitosis/meiosis.... youre welcome
Sorry for the other guy. He was rude. Here's the answer:
Animals excrete CO2 by cellular respiration. Since any living things besides plants can't break down CO2, it just gets put back into the environment. I hope I helped you :)
