Sandra wanted to test the effectiveness of various kitchen cleaners, so she performed the following experiment. First, she prepared five agar plates with the same bacterial density (i. e., the same number of bacteria per plate). Then, she coated the entire agarose surface of one plate with 5 mLs of a particular kitchen cleaner. Finally, she repeated this step three more times using three other kitchen cleaners. Her results appear in the data table below. Plate # of Bacterial Colonies Untreated Plate 24 Cleaner 1 22 Cleaner 2 8 Cleaner 3 12 Cleaner 4 4 Which graph below best represents Sandra's data?

Which of the following is a correct cause and effect relationship for a symptom of diabetes? (note: this is referring to the cause that directly comes before the effect).saturation of glut causes polyuriahyperglycemia causes polydipsiapolyuria causes dehydration

Match the following terms describing electrical events with the correct phases of the cardiac cycle. the ventricular muscle cells depolarize at the start of this phase. during this phase, na+ entry through the funny channels causes the pacemaker potential of sa nodal cells to gradually become less negative until it reaches threshold. the ventricular muscle cells repolarize right before this phase. the cytosolic concentration of calcium in the contractile cells of the ventricle is highest during this phase. a. isovolumetric relaxation b. ventricular ejection c. isovolumetric contraction d. ventricular filling

The embryos of a bird, a reptile, and a mammal are similar in appearance. how does comparing the physical appearance of embryos of different species support the theory of evolution? a. it shows that these organisms share a common ancestor. b. it provides evidence that these organisms eat the same foods.c. it shows that these organisms share the same habitat.d. it provides evidence that these organisms suffered a genetic mutation.