C. Over many generations, the characteristics of these kinds of organisms also change
Answer:
The particularly severe winter of 1777-1778 proved to be a great trial for the American army, and of the 11,000 soldiers stationed at Valley Forge, hundreds died from disease. However, the suffering troops were held together by loyalty to the Patriot cause and to General Washington, who stayed with his men.
Answer:
-kills organisms such as fish, birds, and crabs
-disruption of food chains caused by the death of organisms
-destruction of ecosystems