How do you give brainiest? ill give to whoever answers(answer before venus something deletes it.)

When someone answers to your question, you'll see a crown and that is a brainliest. So you click that and you're done. That's how you give brainliest.

you have to wait for two people to answer then click the crown

Explanation:

i believe is was

b) the heart is a pump made of muscle and that is difficult to grow in the lab.