During which phase of meiosis does crossing over of chromosomes occur? prophase i metaphase i anaphase i telophase i

Which of the following claims does the author support the least

Which of the following is most important in making the typical seed more resistant to adverse conditions than the typical spore? a) a different type of sporopollenin b) an internal reservoir of liquid water c) integument(s) d) ability to be dispersed e) waxy cuticle

Spring tides, when the high tides are at their highest and low tides at their lowest. what is it about these positions that causes these high and low tides?