I would say that C. Is the most correct answer. Hope this helps! :-)
Answer: The average speed of the zebra during time between 0s and 40s is 34 seconds.
A) 5
Half-life is the time it will take for a quantity to reduce to half its initial value. In this case, uranium will undergo radioactive decay, and after 700 mil years, 5 of the 10 uranium atoms will have decayed.
C, you have genes/allels that you got from your parents, but the combination of all your genes together is unique.
The most important acid deoxyribonucleic acid, or DNA, which carries the genetic code of any organism it, and the way that it transmits the individual characters in the life without this acid, or genetic code world would not exist :)
I hope you understand what I mean :)