The bulletin board is the site where I will post
test grades, answer keys, sample questions, practice problems, etc.
Information for week of 3 Dec:
ANSWERS TO QUIZ 10:
1. Which of the following processes removes carbon
dioxide from the atmosphere?
a. nitrogen fixation
b. natural selection
c. respiration
d. eutrophication
e. photosynthesis
2. Which group probably has the lowest production
efficiency?
a. earthworms
b. slamanders
c. reptiles
d. insects
e. birds
3. What biogeochemical cycle is involved with
the greenhouse effect?
a. nitrogen
b. sulfur
c. carbon
d. oxygen
e. phosphorous
4. A population of mice consumes 10,000 kcal
of energy. Hawks eat 800 kcal of mice over the same time period. Hawks
assimilate 600 kcal of this intake, and then 20 kcal goes to growth, 100
kcal to reproduction, and 480 kcal to respiration. What is the ecological
efficiency of this food chain?
a. 80%
b. 10%
c. 12.5%
d. 8%
e. 25%
HINT: Production efficiency is 20% (20+100)/600
5. The constant reuse of carbon by living and
nonliving things is called
