A community of organisms interacting with their physical environment is a/an _____.

If of a cup of food gives you your daily value of potassium, then what fraction of your daily value of potassium is in 1 cup of the food?   Make a math drawing to help you solve the problem and explain your solution. Use our definition of a fraction in your explanation and attend to the whole (unit/reference amount) that each fraction is of.

Describe three general methods for determining which of two fractions is greater. Illustrate the three methods with the fractions and .

Describe in detail at least four important characteristics of our base-ten number system. Your explanation should include a discussion of place value and face value. Use the number 2920 to help highlight the characteristics you are describing.

The Ames test is used to determine if a chemical is a mutagen. If the suspected mutation is really causing mutations, what results do you expect?

Match each label with the correct structure in the figure. 1. [answer1] 2. [answer2] 3. [answer3] 4. [answer4]

During the light reactions, an H+ gradient is made via

To drive endergonic reactions, cells typically use

The phenomenon in which an enzyme undergoes a conformational change that strains chemical bonds within the substrates (reactants) and/or brings them closer together is called

Which of the following is not one of the phases of the Calvin cycle?