Match each of the following terms to the phrase that best describes it. a. Natural

Which of the following is not a characteristic of all living organisms? a. capable of self-reproduction b. composed of multiple cells c. complex yet organized d. uses energy

Place the following levels of biological organization in order from smallest to largest: atom, biosphere, cell, ecosystem, molecule, organ, organism, population, tissue. Which is the smallest level capable of demonstrating all of the characteristics of life?

Plants use the process of photosynthesis to convert the energy in sunlight to chemical energy in the form of sugar. While doing so, they consume carbon dioxide and water and release oxygen. Explain how this process functions in both the cycling of chemical nutrients and the flow of energy through an ecosystem.

For each of the following organisms, match its description to its most likely domain and/or kingdom: a. A foot-tall organism capable of producing its own food from sunlight b. A microscopic, simple, nucleus-free organism found living in a riverbed c. An inch-tall organism growing on the forest floor that consumes material from dead leaves d. A thimble-sized organism that feeds on algae growing in a pond 1. Bacteria 2. Eukarya/Animalia 3. Eukarya/Fungi 4. Eukarya/Plantae

How does natural selection cause a population to become adapted to its environment over time?

Which of the following statements best describes the logic of the scientific method? a. If I generate a testable hypothesis, tests and observations will support it. b. If my prediction is correct, it will lead to a testable hypothesis. c. If my observations are accurate, they will support my hypothesis. d. If my hypothesis is correct, I can expect certain test results.

Which of the following statements best distinguishes hypotheses from theories in science? a. Theories are hypotheses that have been proved. b. Hypotheses are tentative guesses; theories are correct answers to questions about nature. c. Hypotheses usually are narrow in scope; theories have broad explanatory power. d. Hypotheses and theories mean essentially the same thing in science.

______________ is the core idea that unifies all areas of biology.

Match each of the following terms to the phrase that best describes it. a. Natural selection b. Evolution c. Hypothesis d. Biosphere 1. A testable idea 2. Descent with modification 3. Unequal reproductive success 4. All life-supporting environments on Earth

The fruits of wild species of tomato are tiny compared with the giant beefsteak tomatoes available today. This difference in fruit size is almost entirely due to the larger number of cells in the domesticated fruits. Plant biologists have recently discovered genes that are responsible for controlling cell division in tomatoes. Why would such a discovery be important to producers of other kinds of fruits and vegetables? To the study of human development and disease? To our basic understanding of biology?

Interpreting Data Trans fats are a form of dietary fat that can have significant health consequences. The graph below represents data from a 2004 study that compared the amount of trans fats found in adipose

The news media and popular magazines frequently report stories that are connected to biology. In the next 24 hours, record all such stories you hear or read about from three different sources and briefly describe the biological connections you perceive in each story.

If you pay attention, you will find yourself conducting many hypothesisdriven experiments each day. Over the next day, try to think of a good example where you performed a simple experiment to test a hypothesis about some observation. Write the experience out as a story, and then rewrite it using the steps of the scientific method (observation, question, hypothesis, prediction, and so on).