Answer:
B - Water
Explanation:
From nutrients, organisms make tissues and complex molecules such as carbohydrates, lipids, and nucleic acids.
Its the exoskeleton lobsters are crustaceans also known as under water arachnids but they are originally called <span>arthropods.</span>
Simple....
this Na+
It means that it's positive..it has one less electron then a normal sodium atom would have..making it a cation.
Thus, your answer.
