Answer:
The last one and the first one.
hope I could help you pls give this answer a hart thx
Explanation:
For example bees they use wax to build shelter
Answer:
the total mass of organisms in a given area or volume.
Explanation:
Answer:
Cancer can ruin the lungs and cause death of lung tissue. If a lung is ruined, running would be out the picture and you would have enough oxygen to provide for your cells during exercise
