NR 565 Exam 1 Study Set with Questions and Answers

NR 565 Exam 1 Study Set with Questions and Answers A tiny acorn grows into a mighty oak. The majority of the dry weight in the oak comes from: a. Energy from the sunlight. b. Carbon in the soil taken in by the roots. c. Carbon in the air taken in through holes in the leaves, ANSWER c. Carbon in the air taken in through holes in the leaves, With enough available nitrogen, terrestrial plant growth would be unlimited. a. False, terrestrial plants require many nutrients. Growth would next be limited by a lack of something else. b. True, unlimited biologically available nitrogen would result in unlimited plant growth. ANSWER a. False, terrestrial plants require many nutrients. Growth would next be limited by a lack of something else. The water cycle consumes ~ 25% of the solar energy striking the earth during a year. How does this compare with the amount of solar energy used to fuel photosynthesis? a. It is about the same. b. No answer text provided. c. Answer It is much greater. d. It is much less. ANSWER c. or d.