1. Which hypothesis is best supported by observation of this animal? O   a. This animal spends much of its time digging. O   b. This animal usually hunts for food at night. O   c. This animal is a good swimmer. O   d. This animal has poor hearing.

2. In rabbits, short fur (F) is dominant over long fur (f). According to the Punnett square, what is the chance of two heterozygous short-haired rabbits having offspring with short fur? O   a. one in four O   b. two in four O   c. three in four O   d. four in four

3. This organism is most closely related to animals in the Phylum Arthropoda (the phylum that contains beetles), because it has O   a. legs O   b. antennae O   c. jointed appendages O   d. an elongated body

4. Which of these statements is best supported by the data table? O   a. Wheat crop yield increases as the intensity of ultraviolet light increases. O   b. Chloroplasts of wheat are able to filter out low-intensity ultraviolet light. O   c. High-intensity ultraviolet light may be used to control weed growth. O   d. Wheat crop yield decreases as the intensity of ultraviolet light increases.

5. How is the prokaryotic bacterium in the diagram different from a eukaryotic cell? O   a. It has ribosomes to make proteins. O   b. It stores its genetic information in DNA. O   c. It has no membrane-bound nucleus. O   d. It has a cell membrane.

6. A student used the setup above to study the responses of cells to solutions of varying salt concentrations. Which of the solutions on the right would cause no change in cell size? O   a. solution A O   b. solution B O   c. solution C O   d. solution D

7. Which of these is a decomposer in an Oklahoma forest? O   a. pine tree O   b. mushroom O   c. dandelion O   d. caterpillar