The number of protons an element has is the same as the atomic number, so the element would have 86 protons.
Answer: Seastars prey on mussels and shellfish which would otherwise have no other natural predators. Herbivorous fish like the butterflyfish pictured to the left prey on marine algae. Without this crucial predator-prey balance, the algae would over-grow, which would then kill coral, as they compete for the same resources.
Answer:B
Explanation:due to osmosis and osmoregulation of the cell membrane
A physical change has occured, Boiling water is a physical change not a chemical one, now if you're talking about the electric current, that had not changes either. it may rearrange the molecules, but it does not change the fundamental properties of the substance.
That is true because the warm air goes up and the cold air comes down
