Superior vena cava- upper body inferior vena cava
lower body- bother drain into the right atrium
I Think The answer is a or c Try Those options if There wrong I’ll fix Them for you To be sure you get The right answer Message Me if I’m wrong
Accualy some do, but that's a little rare, so I'm guessing because each child gets some of there mom and dad's to genetics, one child might get some of there mom's but more of there dad's and the other might get some of there dad's and more or there mom's..? not sure if that makes any sense-
A species could gain negative traits through evolution. So, evolution does not always mean progress.
