Answer: Humans can cause damage to the stability of ecosystems by removing the flowering trees and shrubs
Explanation:
we have the same test
Answer:
The heart is a pump, usually beating about 60 to 100 times per minute. With each heartbeat, the heart sends blood throughout our bodies, carrying oxygen ... It sends out an electrical signal to start the contracting (pumping) of the heart muscle.
Explanation:
I hope this help but the metalloids is gruop five if that what your asking if not i will answer the other question for you