I think C) availability of water is your best answer because alot of organisms count on water as a major resource because they need it to survive so a lack or a gain in the amount of water will majorly effect an ecosystem.
Human diploid cells have 46 chromosomes (the somatic number, 2n) and human haploid gametes (egg and sperm) have 23 chromosomes (n).
Answer:
2 b
3 b
the others I really don't understand, they are incomplete or misspelled
Caryn has a 50 percent chance of developing Alpha-1.