Answer:
C
Explanation:
Regions of the sex chromosomes in the parents cross over, thus creating new traits in the offspring.
Answer:
it´s <u><em>B</em></u> the answer is B
Explanation:
thats just the answer i think not too sure really but feel free to correct me is you like my dude.
1.left ventricle. 2.right ventricle. 3.left atrium. 4.right atrium
It would be A :) Hope this helps