Answer: B
Explanation:
Ammonia is so toxic that it can be transported and excreted only in large volumes of very dilute solution. As a result most terrestrial animals simply don't have access to sufficient water to routine excrete ammonia.
The main advantage of urea is its very low toxicity. Animals can transport urea in the circulatory system and store it safely in high concentrations. Also much less water is loss when a given quantity of nitrogen is excreted in a concentrated solution of urea than would be in a dilute solution of ammonia.
Fire destroys the area but then New Life Springs back stronger From the Ashes people are interfering with the Prairie ecosystem by stopping the or preventing these hopeful fire
<span>3) Oceans
The oceans are a massive carbon sink, and part of the positive reinforcement of the greenhouse gas cycle is that, as the oceans become warmer, then tend to release more carbon dioxide dissolved in the water which in turn drives temperatures warmer.</span>
Answer:
im taking this test right now whats the answer please
Explanation:
Answer:
D
Explanation:
because molecule A is only shown on the outside and is not exposed to the acidity on the inside of the cells
