Which activity happens during the s stage of the cell cycle

What is the difference between an igneous, sedimentary and metamorphic rock

Up to what percentage of the world's flora consisted of cycads during the triassic period? 100% 75% 50% 20%

Maria wanted to grow a fern in her backyard. acting on a suggestion from a friend, she collected brown dots from the underside of a fern’s leaves and then potted them. after a few days, maria saw small fern leaves erupting from the pot. which statement explains this phenomenon?