Suppose a student hypothesized that mice would grow best if fed raw pasta. He fed one mouse the raw pasta, another mouse was fed apple slices, and another mouse received no food Both the raw pasta mouse and the control mouse had lost mass by the end of two days but the apple slice mouse gained mass. The student concludes that his hypothesis is not supported by his data. Which of the following is the next step?
Generate a new hypothesis. T/F

The collared lizard is a species found in the desert southwest. male collared lizards show considerable color variation, ranging from brightly colored to a very dull pattern. your goal is to determine the function, if any, of male color patterns in collared lizards, using the scientific method. your tentative explanation is that male color plays a role in attracting females for mating purposes. you predict that females will preferentially choose brightly colored males over dull-colored ones. to test this prediction, you observed the interactions of female collared lizards with their male counterparts. you selected males that were the same age and size, and that differed only in their coloration pattern. you placed equal numbers of the two types of male lizards, bright and dull, in aquariums, along with one female lizard per aquarium. out of 350 aquariums observed, the female chose to mate with the brightly colored male 277 times, and the dull-colored male 70 times. in 3 instances, the females did not mate with either type. create a bar graph of your data, plotting the type of male (dull or brightly colored) on the x-axis. on the y-axis, plot the frequency with which each type of male was chosen by females. using this graph, answer the following question(s). is it reasonable to conclude (i.e., is it supported by the data) that female collared lizards prefer more brightly colored male lizards over dull-colored males?

2. sketch the inside of the bean nodule, and describe or label what you observed with the hand lens.

Which of the following is not a possible effectof increasimg carbon dioxide levels in the atmosphere ?