The correct option is C, PROTEINS.
Protein are macro molecules which are made up of units called amino acids. There are twenty different amino acids, each with a unique R group. The elements find in protein include carbon, oxygen, nitrogen, etc. Nitrogen is one of the most important constituent of proteins. <span />
D. The octupus population would decrease.
This is because if more sharks were in the ecosystem than they would feed on more octopus, decreasing the population of them.
A food is something that provides nutrients. Nutrients are substances that provide: energy for activity, growth, and all functions of the body such as breathing, digesting food, and keeping warm; materials for the growth and repair of the body, and for keeping the immune system healthy. (So we don’t die:))
I think it’s C but not precisely sure about it
