Answer:
A sharks ecosystem should have a far and wide open waters and also should have salt water and no ordinary water. it should be around lots of fish so it has stuff to eat. last it needs to have other sharks to mate or keep the chain going.
Explanation:
B.
Special proteins are in charge of regulating the movement of substance through the double-membrane.
I think it is c but im not for sure
They are considered nonrenewable resources because once they are used, they are gone forever, and we are using way more than the Earth can produce. Your answer would be B!
Have a nice day! :)
Water. the only 4 macromolecules are nucleic acid, carbohydrate, lipids, and protein
