Blood enters the heart through two large veins, the inferior and superior vena cava, emptying oxygen-poor blood from the body into the right atrium of the heart. As the atrium contracts, blood flows from your right atrium into your right ventricle through the open tricuspid valve.
I’m pretty sure it’s B, sorry if I’m wrong though, it’s been a while since I’ve learned this! ☻
False. Pathogenic bacteria can only be destroyed by cooking.
