Daily TAKS

1. Daily TAKS 2nd 6 wks

2. “Do I have to?” • If you like extra credit on your tests, yes. • If you have something else you need to be doing, no. • Every question completed and stickered will be worth ½ a point on your unit test. • I will do this every day at the beginning of class.

3. A motor produces less mechanical energy than the energy it uses because the motor — gains some energy through motion stores some energy as electrons converts some energy into heat and sound uses some energy to increase in mass

4. Cell membranes perform all the following functions except — making nutrients for cells holding cytoplasm within cells regulating substances exiting cells recognizing other cells

5. What is the balanced coefficient ratio for the reaction shown above? • 3:3:3:2 • 2:1:2:2 • 2:3:2:2 • 1:1:1:1

6. The diagram shows a longitudinal section of part of a plant root tip. Which of the following statements best describes a trend that can be observed in this root tip? The cells are generally longer at the top than at the bottom. The number of nuclei per cell increases toward the bottom of the root. The cells are shorter the closer they are to the outer surface of the root. The number of cells per area of the root is generally constant

7. Which of the following best describes a difference between a mutualisticrelationship and a parasitic relationship? Parasitism harms both organisms, while mutualism harms only one organism. Parasitism benefits only one organism, while mutualism benefits both organisms. Parasitism involves only two organisms, while mutualism involves many organisms. Parasitism continues for many generations, while mutualism is limited to one generation.

8. Diagram 1 represents a wave. Diagram 2 represents the composite wave formed when a second wave interferes with the original wave. Which of the following best represents the second wave? . . .. ..

9. Water molecules generally have which effect on a soluble ionic compoundmixed into water? They remove electrons from the compound. They break the bonds between the ions. They change the ionic bonds to covalent bonds. They add protons to the ionic nuclei.

10. A student compares the viscosities of two solutions at room temperature. The student uses a metal block and equal volumes of the two solutions in identical containers. Which procedure would provide the best comparison of the viscosities of the solutions? Determining whether the block raises or lowers the density of either solution Determining whether the block raises or lowers the temperature of either solution Measuring the volume of liquid the block displaces in each solution Measuring the time it takes the block to sink in each solution

11. The illustration shows the transcription process. What is the main purpose of the structure labeled W? Carrying instructions for protein synthesis Transforming into a protein Passing traits to offspring Replacing damaged DNA

12. A food web is shown here. If the rabbit population increases, which of the following is most likely to happen soon afterward? The deer population will increase. The plant population will decrease. Different birds will move into the area. The insect population will be eliminated

13. Half of the tube of compound is applied to a pair of tennis shoes and allowed to dry completely. How much mass will the shoes gain? 20 g 40 g 50 g 100 g

14. Some students investigate the rusting rate of four metals in saltwater. To best find the rusting rates, the students should measure the masses of the metals before the investigation and at — the same time and day during each week of the investigation different times and days during each week of the investigation any time during the first week of the investigation one randomly selected time during the investigation

15. Many viruses released into the air survive for only short periods of time. Whichof the following is the most likely reason for this? Viruses attract antibodies in the atmosphere. Viruses require a low atmospheric pressure. Viruses are hosts for bacteria that eventually destroy them. Viruses are dependent on host cells of living organisms.

16. The diagram represents a reflex arc in a human. This pathway responds when someone touches something that causes pain, such as a hot stove. Which of the following shows the correct order of the body systems involved in this response? Integumentary, respiratory, digestive Circulatory, respiratory, nervous Integumentary, nervous, muscular Circulatory, digestive, nervous

17. An advertisement for a new medication claims that patients can lower body cholesterol by 25%–45%. If the claim is accurate, patients who will benefit most from this medication are those who — have high cholesterol levels consume small amounts of cholesterol want to eliminate cholesterol are aware of cholesterol’s effects

18. The long-term survival of any species of organism is possible only if theorganisms can — migrate when temperatures change reproduce successfully find protection from predators locate a constant food source

19. In addition to a hot plate and beakers, which of these items are needed to test the hypothesis above? Test tube, barometer, thermometer Balance, thermometer, hand lens Stopwatch, microscope, test tube Thermometer, stopwatch, balance

20. An electric toy cart has a mass of 6.0 kilograms and a constant acceleration of 0.50 m/s . How much work does the net force do on the toy cart as the cart travels 8.0 meters? 24 Nm 30 Nm 40 Nm 48 Nm

21. White-tailed deer meet their energy needs through which of these activities? Drinking water Absorbing sunlight Eating plants Exhaling carbon dioxide

22. The elements in which of these sets have chemical properties that are the mostsimilar? K, Ca, Sc O, S, Se Na, Ca, Y P, S, Cl

23. A child jumps on a trampoline, as shown above. Which of the following causes the child to rise in the air? Inertia Mass A reaction force A gravitational force

24. Robert Koch is known for developing Koch’s postulates, a series of steps used to identify the agents responsible for some diseases. The validity of the postulates is best supported by which fact shown above? Fact 1 Fact 2 Fact 3 Fact 4

25. Members of the kingdom Animalia are best described as — unicellular, prokaryotic, heterotrophic unicellular, eukaryotic, autotrophic multicellular, eukaryotic, heterotrophic multicellular, eukaryotic, autotrophic

26. An advertisement for a brand of tea claims the tea “improves the immune system.” This claim implies that the tea — helps the body produce antibodies accelerates the process of digestion prevents bacteria from entering cells keeps the body from being exposed to viruses

27. A 2.25 kg fish swims in a pond at a constant rate of 56 meters in 96 seconds. What is the fish’s approximate speed? 0.020 m/s 0.40 m/s 0.58 m/s 1.7 m/s