Science PAT 2010 Part 4 Trees Forests

38. The responding (dependent) variable in the experiment was the

• A. size of the cups
• B. volume of water
• C. number of days to germinate
• D. number of seeds that germinated

39. The nutrient cycle is driven by energy from the 

• sun
• ocean
• ground
• atmosphere

40. Which of the statements above comparing forest-harvesting volumes in 1980 and 2005 are correct?

• A. Statements I and III
• B. Statements I and IV
• C. Statements II and III
• D. Statements II and IV

41. Which of the following pairs of functions is performed by a tree trunk?

• A. 1 and 3
• B. 1 and 4
• C. 2 and 3
• D. 2 and 4

42. A conclusion that can be made from the information in the chart above is that a leaf will die when there is mould on the  

• tip of the leaf
• top of the leaf
• edges of the leaf
• bottom of the leaf

43. Which of the following factors most likely prevents the growth of certain plants in the forest underbrush?

• temperature
• water availability
• amount of sunlight
• nutrient availability

44. Which of the following lists identifies only organisms that are herbivores?

• deer, rabbit, beaver
• owl, eagle, grizzly bear
• willow, tamarck, wild rose
• bacteria, earthworm, mushroom

45. During which years was the tree’s growth most likely affected by drought?

• 2003–2004
• 2004-2005
• 2005-2006
• 2006-2007

46. Which two students in the diagram above are referring to coniferous trees?

• Students II and III
• Students II and IV
• Students I and II
• Students I and III

47. Which of the following gases is produced as a result of photosynthesis?

• oxygen
• nitrogen
• carbon dioxide
• carbon monoxide