The skin separates the human body from the environment. Skin structure serves which primary function? a preventing infection
preventing predation
absorbing needed gases
absorbing needed energy

Onsider the paragraph above. what is one chemical property of water? a) water is a polar molecule. b) water is the universal solvent. c) water reacts with group 1 metals. d) water has a high specific heat capacity.

Which of the following shows the results that you would get if you tested beef using the four tests in the gizmo

What contributes to the high level of biodiversity found in wetlands? a. the large amount of available organic matter to organisms that are food for larger organisms b. the amount of available water for organism use c. the high nutrient availability d. all of the above select the best answer from the choices provided a b c d