Answer:
No.
Explanation:
Because we haven't explored 80% of the Ocean, and there's most likely more living organisms in that 80% of the ocean we don't know about.
I believe the correct word in the blank would be biological. I don't think anything else will fit in, especially when monomers of biological polymers are truly larger and more complex.
Answer:
a scar is a environmental change
It sends an electrical impulse to make your heart beat. The job of a pacemaker is to artificially take over the role of your sinus node if it isn't working properly. Electrical impulses are sent by the pacemaker to stimulate your heart to contract and produce a heartbeat
