In a fox population , the allele frequency of a gene for red fur changes from 20percent to 30percent. what can you say about that population of foxes ? a. the population is expanding b. the population is evolving c. the population is decreasing d. the population is not evolving

he movement of air through earth's or any planet's atmosphere is called wind, and the main cause of earth's winds is uneven heating by the sun. this uneven heating causes changes of atmospheric pressure, and winds blow from regions with high pressure to those with low pressure.

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