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.
They reproduce by pollination.
Answer:
<u><em>B) Adding more plants</em></u>
Explanation:
Live plants produce oxygen and absorb carbon dioxide and ammonia in the water that fish generate
Answer:
d. dilation of the blood vessels serving the skin and digestive viscera.
Explanation:
Cardiovascular effects of the sympathetic division include all of the following EXCEPT dilation of the blood vessels serving the skin and digestive viscera.
Answer:
protect coastlines from storms and erosion, provide jobs for local communities, and offer opportunities for recreation.
Explanation:
it helps the world in different ways