Suppose you are studying the nitrogen cycling in a pond ecosystem over the course of a month. While you are collecting data, a flock of one hundred Canada geese lands and spends the night during a fall migration
What could you do to eliminate error in your study as a result of this event?
A) Find out how much nitrogen is consumed in plant material by a Canada goose over about a twelve-hour period, multiply this number by 100, and add that amount to the total nitrogen in the ecosystem.
B) Find out how much nitrogen is eliminated by a Canada goose over about a twelve-hour period, multiply this number by 100, and subtract that amount from the total nitrogen in the ecosystem.
C) Find out how much nitrogen is consumed and eliminated by a Canada goose over about a twelve-hour period and multiply this number by 100; enter this +/- value into the nitrogen budget of the ecosystem.
D) Do nothing. The Canada geese visitation to the lake would have negligible impact on the nitrogen budget of the pond.
E) Put a net over the pond so that no more migrating flocks can land on the pond and alter the nitrogen balance of the pond.
Answer: C
You might also like to view...
During which stage of meiosis will the pairs of homologous chromosomes line up?
A) metaphase I B) metaphase II C) metaphase D) anaphase I E) prophase II.
In the Gram-staining procedure, the counterstain is
A. safranin. B. alcohol. C. crystal violet. D. iodine.
What are some of the different respiratory systems seen in animals?
What will be an ideal response?
A side effect of the Army’s solution to the
contamination problem at its Aberdeen Proving Grounds is a. increased ground-water pollution. b. the depletion of most soil nutrients. c. the restoration of the soil’s normal inhabitants. d. increased air pollution. e. none of these.