The answer is A. V-shaped trench and B. A bioluminescent fish (apex)
Variation of trainers HELP species.
Answer:
Humans have 23 pairs of chromosomes--22 pairs of numbered chromosomes, called autosomes, and one pair of sex chromosomes, X and Y. Each parent contributes one chromosome to each pair so that offspring get half of their chromosomes from their mother and half from their father.
Explanation:
(Sorry, I'm not sure)
It can affect the pet and it's health.