Posted: February 22nd, 2017

Which of the following chemicals is insoluble in water? A. C6(benzene) H6 B. HCI {hydrochloric acid) C. NH3 (ammonia) D. NaHC03 (sodium bicarbonate)

22. A test is performed to see if applying fertilizer to rose bushes increases the number of flowers on bushes. Which of the following best relates to the hypothesis for this experiment? A. Watering all of the rose bushes the same amount throughout the experiment B. Predicting that fertilizer will increase the number of flowers on bushes C. Selecting a rose bush that will not be fertilized D. Measuring the number of flowers on the rose bushes each week

23. One neutron is added to the nucleus of an atom of carbon-12. In which of the following ways has the atom been changed? A. It bonds with different atoms. B. It has an atomic number of 7. C. It has been changed to an ion. D. It has a greater atomic mass.

24. PlantDeerTiger The first step in the energy chain that created the bonds of proteins in the tiger’s muscle cells in the food chain shown above is the A. deer the tiger ate. B. plant the deer ate. C. photons the sun made. D. carbohydrates the plant made.

25. Which of the following chemicals is insoluble in water? A. C6(benzene) H6 B. HCI {hydrochloric acid) C. NH3 (ammonia) D. NaHC03 (sodium bicarbonate)

26. Which of the following nitrogenous bases is found exclusively in DNA? A. Adenine B. Cytosine C. Guanine D. Thymine

27. Both digestion and absorption happen in which of the following parts of the digestive system? A. Gallbladder B. Esophagus C. Stomach D. Small Intestine

28. Which of the following tissues would send a message to the brain indicating that someone has touched something hot? A. Epithelial tissue B. Nervous tissue C. Muscle tissue D. Connective tissue