Ascientist in a lab looks under a microscope at muscle tissue and makes a few observations on what he notices. looking at the scientist’s observations below, which one best supports cell theory? the muscle tissue cells contain multiple mitochondria. each cell contains more than one nucleus. the cells in the muscle tissue are undergoing mitosis. none of the above

In german cockroaches, curved wing (cv) is recessive to normal wing (cv+). bill, who is raising cockroaches in his dorm room, finds that the frequency of the gene for curved wings in his cockroach population is 0.6. in his friend joe’s apartment, the frequency of the gene for curved wings is 0.2. one day joe visits bill in his dorm room, and several cockroaches jump out of joe’s hair and join the population in bill’s room. bill estimates that, now, 10% of the cockroaches in his dorm room are individual roaches that jumped out of joe’s hair. what is the new frequency of curved wings among cockroaches in bill’s room? 0.69 0.4 0.5 0.31 0.20

Which of the following was not a major animal on land during the carboniferous period? amphibians insects both a and b none of the above

Which organelle plays a role in intracellular digestion?