Nori. The black seaweed wrappers used in makimono are called nori (海苔). Nori is a type of algae, traditionally cultivated in the harbors of Japan. Originally, algae was scraped from dock pilings, rolled out into thin, edible sheets, and dried in the sun, in a process similar to making rice paper.
D) gravel on the bottom of the aquarium. "Abiotic" means "non-living," so you would essentially pick the answer that does not include any organisms (the organisms here are plants, fish, and algae).
Answer:
Proteins are polymers; the monomers which make them up are amino acids.
Hope this helped!!!
The third one should be correct
It is a cheap energy source