Dr. Doe designs an experiment to test whether hummingbirds prefer red flowers over white. He places a hummingbird in an aviary with one flower of each color and counts the number of times the hummingbird visits each. What be an acceptable null hypothesis for this study?
A. There is a difference in the number of visits between the red and white flowers
B. Hummingbirds prefer red flowers over white
C. There is no difference in the number of visits between the red and white flowers
D. Hummingbirds prefer white flowers over red
Ans: C. There is no difference in the number of visits between the red and white flowers
You might also like to view...
Four of the five answers listed below are characteristics of most veins. Select the exception
a. blood volume reservoir b. contain valves c. low resistance-transport tubes d. oxygen-rich blood e. low blood pressure
External gills that are later replaced by paired lungs are found in:
a. fish b. amphibian larvae c. frogs d. reptiles e. mammals
Choose the letter of the best match from the following:A. Abscisic acidB. TrichomesC. AquaporinD. EndodermisE. StomaRegulates movement of mineral ions into root xylem.
Fill in the blank(s) with the appropriate word(s).
Carbonic anhydrase in red blood cells:a
removes oxygen from the erythrocyte. b. carries carbon dioxide in the erythrocyte. c. converts carbon dioxide to carbonic acid. d. increases the pH of the blood. e. increases the permeability of the capillary to carbon dioxide.