Multiple Choice
A porcupine eats 3,000 J of plant material. Of this, 2,100 J is indigestible and is eliminated as feces, 800 J are used in cellular respiration, and 100 J are used for growth and reproduction. What is the approximate production efficiency of this animal?
A) 0.03%
B) 3%
C) 10%
D) 27%
E) 33%
Correct Answer:

Verified
Correct Answer:
Verified
Q49: The Hubbard Brook watershed deforestation experiment yielded
Q50: Subtraction of which of the following will
Q51: If the sun were to suddenly stop
Q52: Which of the following is a true
Q53: <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB5463/.jpg" alt=" Food web
Q55: <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB5463/.jpg" alt=" Diagram of
Q56: Secondary consumers that can eat only primary
Q57: In a typical grassland community, which of
Q58: Which of the following would be considered
Q59: Why does a vegetarian leave a smaller