If two parents are contributing genetic material to their offspring, why don’t the genes and chromosomes double in each generation?

The source of energy shown in the image is (renewable, non renewable, polluting) a drawback of building a dam is that (it will destroy ecosystems, it requires fossil fuels, it won’t be useful for irrigation)

Which of the following terms describes all of the non-living components of an ecosystem

The graph shows how much money the south dakota livestock industry earns annually. according to the graph, which industry would experience the greatest financial impact from a loss of pastureland