Answer:
The answer is C - The part underwater
The answer is C - t<span>he excretory system filters and removes dissolved waste from the blood.
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<span>The excretory system involves the urinary system, a system of organs that removes waste products from our body through urine. Our cells have waste products from the breakdown of proteins, carbohydrates, etc and they they become dangerous if accumulated. So, they get dissolved in the blood and it's in the kidney, that the blood filtration will happen and all the waste products are eliminated in the form of urine.</span>
Sunlight ( the source of energy), air (composed mainly of oxygen and carbon dioxide), water, food (nutrients), temperature (a habitat with a right temperature for different kind of organisms).