A gene pool changes throughout evolution this could be natural selection, genetic drift or a mutation. A gene pool does this to adapt with the needs of the environment it is in
Answer:
Nitrogenous;Acid-Base and Fluid
Explanation:
The kidney is referred to as an excretory organ because it excretes nitrogenous wastes. It is also a major homeostatic organ because it maintains the electrolyte Acid-Base, and fluid balance of the blood.
Skin pigments actually protect us from ultraviolet rays!
Answer:
Depression
Explanation:
Everything happen to Kim could be treatment.. There is no reason to die. She needs to be strong to avoid the negative things that impact her thinking..Try to be happy, exercise and have good friend... If she keep doing the nice things , the good thing will come to her. I hope this partial ideas will help her to overcome this difficult time.
Answer: i know the answer but i just cant think off the top of my head i am sorry i really want to answer though but if i figure it out i will tell you
Explanation:
