What three conditions must a fossil meet in order to be an index fossil?

Why is water important to life in term of cells?

Which of the following is typically associated with a reduction in photosynthesizing plants in a water supply? An increase in dissolved oxygen A decrease in dissolved oxygen An increase in phosphates A decrease in phosphates

Including fiber in your diet is beneficial to your GI tract, but consuming excess amounts of fiber can result in the loss of nutrients. This statement is an example of which of the factors to consider in planning diets? a. adequacyb.

What types of things pass through a cell membranes

A biologist would most likely study all of the chemical activities of an organism to obtain information about the organism's: a) number of mutations b) reproductive cycle c) development d) metabolism

List the general functions of the nervous system

Where is the moon in it's orbit at the time of a solar eclipse

How do genes and traits relate?

Why would we give moral consideration to infants but not animals?

Barry is a vegan. His diet does not include foods that contain preformed vitamin A and he does not take any supplements. Nevertheless, his body has adequate vitamin A stores.