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Chapter 46: Q. 12 (page 1369)

The weight of living organisms in an ecosystem at a particular point in time is called: a. energy b. production c. entropy d. biomass

Short Answer

Expert verified

The correct option is d. biomass .

Step by step solution

01

Step 1. Given information

Biomass is the total mass, in a unit area at the time of measurement, of living or previously living organisms within a trophic level. Ecosystems have characteristic amounts of biomass at each trophic level.

02

Step 2. Explanation

The correct option is d. biomass .

Biomass is the total mass, in a unit area at the time of measurement, of living or previously living organisms within a trophic level. Ecosystems have characteristic amounts of biomass at each trophic level.

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Most popular questions from this chapter

The majority of water found on Earth is:

a.ice

b.water vapor

c.fresh water

d.salt water

The process whereby nitrogen is brought into organic molecules is called

a. nitrification

b. denitrification

c. nitrogen fixation

d. nitrogen cycling

Decomposers are associated with which class of food web? a. grazing b. detrital c. inverted d. aquatic

Why do you think the value for gross productivity of the primary producers is the same as the value for total heat and respiration (20,810 kcal/m2 /yr)?

Pyramids depicting the number of organisms or biomass may be inverted, upright, or even diamond-shaped. Energy pyramids, however, are always upright. Why?
See all solutions

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