Your answer would be D. Carbon monoxide. Everything else pollutes the water
Answer:
the central nervous system
Explanation:
The nervous system is made up of the central nervous system and the peripheral nervous system: The brain and the spinal cord are the central nervous system.
When a Stickleback fish feels threatened, it will flare out its pair of pelvic spines and three dorsal spines, making it difficult for predators to swallow them.
<span> It is hotter near the equator because the Sun's rays hit the Earth more directly in that area so they are focused or concentrated more in that area</span>
