b. Some areas of study within environmental science deal with abiotic elements. List three fields within environmental science that focus on nonliving aspects of the environment, and briefly define each. (0.5 point)

What were the main components of earth’s earliest atmosphere? oxygen and ammonia hydrogen and helium oxygen and nitrogen hydrogen and nitrogen

In one or two well-crafted paragraphs in your laboratory journal, summarize the process in which normal cells become cancer cells. your paragraph(s) must include each of the terms listed below. underline each term in your writing:

Which of the following factors would not contribute to allopatric speciation? a) a population becomes geographically isolated from the parent population.b) the separated population is small, and genetic drift occurs.c) the isolated population is exposed to different selection pressures than the ancestral population.d) different mutations begin to distinguish the gene pools of the separated populations.e) gene flow between the two populations is extensive.