Muscles help with homeostasis because they 1:produce blood cells 2:produce heat 3:produce Vitamin D 4:help control calcium levels in the blood

Which of the following is a cost of urbanization? a-cities can provide a high standard of living. b-cities are hubs of entertainment and education. c-paving over land changes the environment. d-job opportunities are greater in urban centers.

Which medullary index indicates a human hair? a. 0.653 b. 0.733 c. 0.516 d. 0.256

If water were a non polar molecule, how would its properties be different ? a.) water would be a much lighter molecule b.) water would be able to climb up inside plants c.)water would not be able to form hydrogen bonds d.) water would stick together much more strongly