The magnification power level of the microscope
Answer:
No, mutations do not all result in negative effects. Sometimes they can be beneficial, as they are completely random. It is our general tendency to think of the word "mutation" in negative terms; however, do not get confused. Mutations are the root/ultimate source of genetic variation; they are one of the main factors that allow populations to evolve.
I believe the correct answer to your question is option A. Black moths were selected for when the trees turned black.
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It’s c because I’m sad rn
Answer:
<h2>B. Carbon dioxide emissions and global warming:We have already lost some 80 percent of the coral reefs in the Caribbean over the last three decades, and losses in the Pacific Ocean are also widespread. Reefs are like cities, with some parts growing and some parts being destroyed. When the net growth is positive, reefs can persist. Amazingly, coral reefs are threatened by such atmospheric conditions as..</h2>