That would be Newton's third law of motion.
All the populations of organisms living close enough together for potential interaction make up a community!
Answer:
animals died and water was contaminated
Explanation:fish are meant to swim in water not oil
Answer:
The most recent common ancestor of all currently living organisms is the last universal ancestor, which lived about 3.9 billion years ago. ... 6,331 groups of genes common to all living animals have been identified; these may have arisen from a single common ancestor that lived 650 million years ago in the Precambrian.
Insects become resistant to pesticides after being exposed to it for some time.
hope this helps