Genes are segments of dna that are the basic unit of heredity. they are passed on from parent to offspring. the gene form of a trait is called a(n) .

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