What is a parasitic relationship? a) one in which one member benefits, and the other is harmed.
b) one in which no members benefit, and none are harmed.
c) one in which one member benefits, and the other is unharmed.
d) one in which both members derive some benefit.

For this question look at the hydropic diagram water that is heated by the sun evaporates. select the number that represents it.

1) what three conditions must be present for minerals to form through natural processes? 2) why are minerals considered inorganic substances? 3) how do oxides differ from other minerals that contain oxygen atoms? 4) how is a sulfide different from a sulfate? what makes native elements unique?

How does science influence the decisions made about social, economic, and political issues?