Which of the following best defines gene ffow? O the Sum of all genetic traits ina population's individuals at a given time
O any movement of qenes from one population to another
any mOvement of organisms from one environment to nother
O the random change in the frequency of an allele in a population

In what for do plants utilize nitrogen? why do they need nitrogen?

Rachel ate a piece of fruit and happened to drop the seeds in her backyard. after a few weeks, she saw a small plant with flowers growing in the backyard. which group does this plant belong to? a. angiosperms b. gymnosperms c. pteridophytes d. bryophytes e. chytrids

Many organizations release indexes used to measure the development of the world's countries. as we learned in this lesson, these indexes measure many factors, from life expectancy to happiness. in your opinion, what are the three most important factors we can use to determine how developed a country might be? explain your answers in a few sentences.