Easy biology question below first correct answer gets brainliest

What was darwins theory of common decent

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

Land conservation is a worldwide priority. there are several methods to prevent the loss of land due to a variety of reasons. which method is not a way to conserve land? a) sea walls b) rainwater harvesting c) limits on clear cuts of forests d) cut and burn methods of clearing land