Week 1 – Day 2

1. Week 1 – Day 2

2. OBJ 1 Pain medications can be made as powders or tablets. The powders tend to work faster than tablets with the same ingredients because powder — F) dissolves faster in solution than a single tablet G) has more total mass than a single tablet H) travels through the bloodstream more easily than a tablet J) is easier to swallow than tablets

3. OBJ 1 Pain medications can be made as powders or tablets. The powders tend to work faster than tablets with the same ingredients because powder — dissolves faster in solution than a single tablet

4. HOW TO GET THINGS TO DISSOLVE FASTER • --CRUSH IT • --HEAT IT • --STIR IT • CRUSHING IT INCREASES SURFACE AREA…so IT HELPS IT DISSOLVE FASTER…........

5. OBJ 1 Which of the following will allow measurement of a liquid’s volume with the greatest precision? • 50 mL cylinder graduated in 1 mLincrements • 100 mL cylinder graduated in 0.5 mLincrements • 100 mL cylinder graduated in 1 mLincrements D) 200 mL cylinder graduated in 5 mLincrements

6. OBJ 1 THE MORE LINES (INCREMENTS)….the more precision….. 100 ml graduated cylinder graduated 0.5 increments 100/0.5 = 200 lines

7. OBJ 1 Ten different types of culture media were inoculated with the same strain of bacteria and incubated at the same temperature. Nine of the cultures grew. Which of these conclusions can be drawn from this information? F) The media used in the experiment are all capable of sustaining bacterial growth. G) The temperature varied greatly during the experiment. H) Only the culture that failed to grow bacteria was inoculated properly. J) One of the media lacked the nutrients needed for the bacteria to grow.

8. OBJ 1 The owner of a pet store assures a customer that if she buys only one female hamster, she will not need to worry about the hamster having offspring, because there will be no male with which the female can breed. What possibility is the pet-store owner overlooking? F ) The hamster could be infertile. G) The sex of the hamster could change. H) The hamster could be pregnant. J) The hamster could be a twin.

9. OBJ 1 The owner of a pet store assures a customer that if she buys only one female hamster, she will not need to worry about the hamster having offspring, because there will be no male with which the female can breed. What possibility is the pet-store owner overlooking? The hamster could be pregnant.

10. OBJ 1 Which of the following pieces of equipment would be most appropriate for measuring the volume of a marble?

11. OBJ 1 Which of the following pieces of equipment would be most appropriate for measuring the volume of a marble?

12. OBJ 1 In an investigation 10,000 dung beetles were examined for the presence of parasites. The data showed that about 5% of the beetles had parasites. The results are — F) invalid because only dung beetles were examined G) unsupported because the parasite population was small H) erroneous because more beetles should have had parasites J) valid because the sample size was sufficient for accuracy

13. OBJ 1 In an investigation 10,000 dung beetles were examined for the presence of parasites. The data showed that about 5% of the beetles had parasites. The results are — valid because the sample size was sufficient for accuracy (ALWAYS NEED A BIG SAMPLE SIZE)

14. OBJ 2 The medulla, part of the brain stem, reacts quickly to increased levels of CO2 in the blood and stimulates a response from the — A excretory system B immune system C respiratory system D integumentary system

15. OBJ 2 The medulla, part of the brain stem, reacts quickly to increased levels of CO2 in the blood and stimulates a response from the — respiratory system

16. OBJ 2 Energy conversion within an animal cell would be severely limited by removal of the cell’s — A) mitochondria B) chloroplasts C) plastids D) lysosomes

17. OBJ 2 Energy conversion within an animal cell would be severely limited by removal of the cell’s — A) mitochondria

18. OBJ 2 Multicellular eukaryotes that are usually mobile and obtain food from other organisms probably belong to the kingdom — A) Plantae B) Fungi C) Animalia D) Protista

19. OBJ 2 Multicellular eukaryotes that are usually mobile and obtain food from other organisms probably belong to the kingdom — Animalia

20. OBJ 2 Which system is responsible for producing enzymes that aid in breaking down substances to be absorbed for the body’s growth and repair? F) Digestive system G) Reproductive system H) Respiratory system J) Skeletal system

21. OBJ 2 Which system is responsible for producing enzymes that aid in breaking down substances to be absorbed for the body’s growth and repair? Digestive system

22. OBJ 2 What trait will most likely be observed in all offspring of the above set of parents? A) Green feathers B) Yellow feathers C) Long beak D) Short beak

23. OBJ 2 What trait will most likely be observed in all offspring of the above set of parents? TRAITS YOU SEE = DOMINANT Capital Letters = Dominant GO WITH THE ONE WITH THE MOST CAPITAL LETTERS

24. OBJ 3 Which organisms in this food web can be described as both primary and secondary consumers? F) Hawks G) Weasels H) Raccoons J) Mice

25. OBJ 3 This relationship is an example of — A) predation B) parasitism C) mutualism D) commensalism

26. OBJ 3 Wolves and hawks are at the same trophic level because they — A) both live on land B) are both large mammals C) both eat primary consumers D) have similar hunting patterns

27. OBJ 3 Which characteristics might help a plant species survive in an area with limited sunlight? F) Bright flowers G) Large leaves H) Short stems J) Thick cuticles

28. OBJ 3 In this food chain, the spiders are — A) producers B) primary consumers C) competitors D) secondary consumers

29. OBJ 3 A person living near this pond wants to reduce the mosquito population. The mosquito population included in this food web could be reduced by —

30. OBJ 3 A person living near this pond wants to reduce the mosquito population. The mosquito population included in this food web could be reduced by — ADDING MORE SHELTER FOR FROGS

31. OBJ 4 What is the volume of a 500.00 mass sample of seawater with a density of 1.025 g/mL? F) 487.8 g G) 500.0 g H) 512.5 g J) 625.0 g

32. OBJ 4 As a scuba diver goes deeper underwater, the diver must be aware that the increased pressure affects the human body by increasing the — A) body’s temperature B) amount of dissolved gases in the body C) amount of suspended solids in the body D) concentration of minerals in the body

33. OBJ 4 What are the coefficients that will balance this chemical equation? A 2, 1, 1 B 3, 4, 2 C 2, 2, 1 D 4, 3, 2

34. OBJ 4 What are the coefficients that will balance this chemical equation? A 2, 1, 1 B 3, 4, 2 C 2, 2, 1 D 4, 3, 2

35. OBJ 4 What are the coefficients that will balance this chemical equation? A 2, 1, 1 B 3, 4, 2 C 2, 2, 1 D 4, 3, 2

36. OBJ 4 What are the coefficients that will balance this chemical equation? A 2, 1, 1 B 3, 4, 2 C 2, 2, 1 D 4, 3, 2

37. OBJ 4 What are the coefficients that will balance this chemical equation? A 2, 1, 1 B 3, 4, 2 C 2, 2, 1 D 4, 3, 2

38. OBJ 4 Which of the following salts has the greatest solubility in water at 25°C? F CaCO3 G FeS H HgCl2 J KClO4

44. OBJ 4 What is an example of a chemical change? F Ice cracking G Sugar dissolving H Milk souring J Lead melting

45. OBJ 4 What is an example of a chemical change? Milk souring (CAN’t GET SOUR MILK BACK)

46. OBJ 4 Which factor makes water an effective solvent? F The presence of molecular oxygen G Its lack of covalent bonds H The polar nature of its molecules J Its abundance on Earth’s surface

47. OBJ 4 Which factor makes water an effective solvent? WHEN THEY ASK ABOUT WATER = THINK polar

48. OBJ 5 • The diagram represents the total travel of a teacher on a Saturday. Which part of the trip is made at the greatest average speed? F) Q G) R H) S J) T

49. OBJ 5 • The diagram represents the total travel of a teacher on a Saturday. Which part of the trip is made at the greatest average speed?

50. OBJ 5 • The diagram represents the total travel of a teacher on a Saturday. Which part of the trip is made at the greatest average speed?