<span>https://www.nature.com/scitable/topicpage/inheritance-of-traits-by-offspring-follows-predictable-652...
I think you can use this website to help you. :)</span>
A baby's heart beat 60-90 per minute an athlet beat 40-46
Answer:
its a barrier that goes around everything else
Answer:
A: The amount of energy available in the organisms at each level.
Explanation:
Hopefully this helps!