The generative cell of male angiosperm gametophytes is haploid. this cell divides to produce two haploid sperm cells. what type of cell division does the generative cell undergo to produce these sperm cells?

Which of the following is not a food produced in rainforests? a) coffee b) cocoa c) avocados d) wheat

On a spring day, a middle-latitude city (about 40? north latitude) has a surface (sea-level) temperature of 10 ? c. if vertical soundings reveal a nearly constant environmental lapse rate of 6.5 ? c per kilometer and a temperature at the tropopause of –55 ? c, what is the height of the tropopause?

Which of the characteristics of life does a virus display