Answer:
as it settles deeper underwater ph tends to be higher and a sea urchin tends to be more resilient to change
SMELL IS THE ONLY PHYSICAL THING IN THE CHOISES GIVEN
It's the sodium ion.
When a neural impulse is fired in both neurons, it is always cause by an excited electron in one neuron moving to the other neuron to destabilize the balance of ions trying to keep them at equilibrium. This action either depolarizes or hyper-polarizes the membrane. If it does, then sodium ions--the key deficient ones--can flow into that region of low charge and maintain that state of low charge, keeping the cell membrane stable.
Distillation involves boiling of a liquid until it turns to gas, leaving behind impurities which can not vapourise. The vapors will then be re condense to form the original liquid. The process of distillation illustrates the relationship between matter and energy because is show that matter changes state when enough energy is applied in the form of heat. When this heat is removed, then matter will return to its original state.
During anaerobic respiration , cells make energy without <u>Oxygen</u>
the energy obtained during anaerobic respiration is 2 ATP
