The smoke from the industrial revolution's factories made it so the trees turned black. The white colored moths couldn't survive anymore because they didn't blend into the trees. One day a genetic mutation happened, and the moth turned dark. The dark moth was able to survive better, and therefore, mated, and produced more dark colored ones.
Answer:
expensive clean energy startup costs
threat to the livelihood of many citizens
negative effect on future crop yields
expensive to monitor fishing and tourism industries
Explanation:
<span>D. A theory is backed up by repeated observations and tests.</span>
Answer:
process in living organisms involving the production of energy, typically with the intake of oxygen and the release of carbon dioxide from the oxidation of complex organic substances.