Why does having a genetically diverse population make a species more likely to survive a change to the environment?

You see a white marker with an orange circle and black lettering. what does this marker tell you

Achild is suffering from fever but the doctor cannot immediately pinpoint the alignment on the basis of this one symptom explain why also mention other two such general symptoms

The process of meiosis produces only gametes, eggs or sperm. according to the diagram, how many sperm are formed from each cell that undergoes meiosis?