Biology: The Unity and Diversity of Life
15th Edition
ISBN: 9780357093795
Author: STARR
Publisher: CENGAGE LEARNING (CUSTOM)
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Textbook Question
Chapter 46, Problem 5SQ
Efficiency of energy transfers in aquatic ecosystem is typically higher than in land ecosystems because ______.
- a. aquatic food webs include more endotherms
- b. algae do not make lignin
- c. primary production cannot occur in water
- d. all of the above
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Flux of anthropogenic Phosphorous from terrestrial to aquatic ecosystems can have negative effects, such as
A. Eutrophication
B. Ocean acidification
C. Acid rain
D. Both A and C
E. A, B and C
All organisms at the top trophic level_______ . a. capture energy from a nonliving source b. obtain carbon from a nonliving source c. would be at the top of an energy pyramid d. all of the above
The amount of energy available to heterotrophs is ________.
Select one:
a.
net primary productivity (NPP)
b.
always equal
c.
kilocalories per unit area
d.
gross primary productivity
Chapter 46 Solutions
Biology: The Unity and Diversity of Life
Ch. 46 - Changes in the Air To assess the impact of human...Ch. 46 - Prob. 2DAACh. 46 - Prob. 3DAACh. 46 - Prob. 4DAACh. 46 - In most ecosystems, the primary producers use...Ch. 46 - Organisms at the lowest trophic level in a...Ch. 46 - Prob. 3SQCh. 46 - Prob. 4SQCh. 46 - Efficiency of energy transfers in aquatic...Ch. 46 - Prob. 6SQ
Ch. 46 - Earths largest carbon reservoir is _______. a. the...Ch. 46 - Prob. 8SQCh. 46 - Prob. 9SQCh. 46 - The _____ cycle is a sedimentary cycle. a....Ch. 46 - Earths largest phosphorus reservoir is _______. a....Ch. 46 - Prob. 12SQCh. 46 - Nitrogen fixation converts _______ to _______. a....Ch. 46 - Prob. 14SQCh. 46 - Prob. 15SQCh. 46 - Where does your drinking water come from? An...Ch. 46 - Scientists study bubbles trapped in ancient...Ch. 46 - Nitrogen-fixing bacteria live throughout the...
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