Air and water pollution are directly responsible for the loss of some species. in their studies of these pollution effects, biologists have determined that are especially sensitive to air pollution, and are now being used as an index of urban air quality.

In order to study genetic mutations, scientists must study genetic material. which statement describes the genetic material scientists are most likely studying? a) they study alleles that contain chromosomes, which are rna. b) they study alleles that contain genes, which are chromosomes. c) they study chromosomes that contain genes, which are dna segments.

Which type of landforms forms at the plate boundary as a result of divergent stress

Which of these correctly describes the difference between processes that take place in prokaryotic and eukaryotic cells?