Explain how oxygen enters your body and is used. Make sure you mention the organs used, chambers of the heart and in which direction the blood goes.

All green buildings are: a. painted green b. made from recycled materials c. use solar energy d. energy efficient

Which of the following statements is false? Ethologists believe that animal behavior is based on instinct. Comparative behaviorists believe that animal behavior is based on the environment.

Why are lipids unique when compared to the other macromolecule groups?

Which statement is not true of ozone? It produces ultraviolet radiation. It is a form of oxygen. It is an ingredient in smog. It forms a layer in the upper atmosphere.

Describe how natural selection can sometimes lead to the persistence of harmful or even lethal alleles. Include an example.

Drake is comparing time people spend playing games on Xbox versus Playstation. In his study, individuals ages 10 - 15 are given Xbox's and individuals ages 16 - 25 are given Playstations.

How do scientists obtain knowledge about the world? Check all that apply.

What would the temperature of the surface be if the Earth did not have an atmosphere?

How would the lack of water affect cellular respiration?

Different types of normal tissues in the human body have different mitotic indices. From the following list, which normal tissues would you expect to have the highest mitotic index: muscle, skin, kidney, or lung? Explain your answer.