Question

Please help!! it’s credit for my grade

DO NOT answer if you don’t know! ‘fake’ answers will be reported

Answer 1

Elephants, live longer than birds and hearts beat slower because they use energy more efficiently.

Step-by-step explanation:

Answer 2

I know the first one at least! Sorry!

1) Because an elephant uses more energy to walk and do daily activities, making his heart beat slower as it tries to walk. The bird heart would go really fast, as its trying to fly.

Step-by-step explanation: