Arteries contain blood that is ...

a. high in oxygen

b. low in oxygen

c. both high and low

Any substance that forms hydrogen ions in water is?

As of 2009, all living human beings have had their entire genome sequenced.

When there is a lower concentration of water outside of a plant cell rather than inside a plant cell the plant will tend to

1. Over time, the mushrooms that grow in a certain forest have been overharvested by humans. As a result, the number of mushrooms in the area has decreased dramatically. Fewer forest trees will become infected with harmful Dutch elm disease.

Which theory did Pasteur disprove by using boiled beef broth and a flask with S-shaped tubing? A. Cells came from preexisting cells. B. Cells make up all living things. C. Cells are the basic unit of life. D. Cells came from nonliving things.

Which of the following should be used to see small objects that are not visible to the naked eye? A. Metric ruler B. Balance C. Microscope D. Transfer pipette

Which carbohydrate source is found in small concentrations in tsi media, allowing the investigator to differentiate between organisms that can only ferment this monosaccharide and those that are able to ferment other available carbohydrate sources?

You are a geneticist trying to develop a sunflower with red flowers and a short stem. as you compare the sunflowers you have, what genetic variations would you look for? what kinds of plants would you select for crossing?

How are Amino acids linked to become proteins?

1. Explain what is the "Sea Floor Spread" with examples. 2. Explain "Continental Slide" with your own example. 3. How do you explain Transform Boundary after going through the "Slippin' and a Slidin' ".