Genes a and b are 20 cM apart. An a+b+/a+b+ individual was mated with an ab/ab individual. a.) diagram the cross and show the gametes produced by each parent and the genotype of the F1. b.) What gametes can the F1 produce, and in what proportions? c.) If the F1 […]

The visits of the first robotic missions to the icy moons radically changed scientists’ conceptions of the suitability of these worlds to host life. Which of the following statements about this change in perception is true? Select each true statement (there may be several). A) Detection of radioactivity confirmed that […]

1. a hypothetical drug is administered which dilates blood vessels in the periphery (decreasing resistance) without directly affecting other tissues. Which of the following will occur as a consequence of administering this drug? a. an increase in blood pressure and an increase in cardiac outputb. an increase in blood pressure […]

1. What are some examples of arthropods? 2. What are the classes into which the phylum Arthropoda is divided? What are the three main classes and some of their representative species? 3. What are the main morphological features of arthropods? 4. In terms of germ layers and the presence of […]