All of the following might be ways of identifying potentially useful plants except observing which plants are the most used food plants. ??? ??? ??? In pines, an embryo is a(n) ________. seed ??? ??? ??? In pine trees, pollen grains get to the ovule via the micropyle. ??? ??? ??? In pine trees, microsporangia form ________ microspores by ________. haploid; meiosis Please allow access to your compu