Explanation:
well a mutation in my opinion is genetic change that happened in the animal this could be beneficial or may not be. natural selection is a process that ensures only the best of the species survives and more of them will produce because all of the flawed ones will die off. adaptaion is when a plant or animal adapts to its surrounding over time they may develop a charterisric that will help them thrive. all of them tie togethor
If the water is salty like in the oceans, as the water freezes the salt is pushed out making the water denser making it sink to the bottom in a current to keep climate cool and the surface currents warm the artic. The way it effects life is, it makes a passageway over the freezing water across so that you won't freeze to death swimming. And it helps migration too. The Sub-zero waters keep algae from growing, which is good because most are hibernation.
I hope this helped!
While insulin suppresses gluconeogenesis, glucagon increases glycogen.
In small intestine millions of micro villi are present for greater absorbption of digested food.
I think the answer is molars