Which one of the following is NOT true of biomass?
A. Biomass is greatest in producers.
B. Biomass is a measure of productivity.
C. Biomass is the dry weight of organisms.
D. Biomass shows a loss of 10% at each trophic level.
D. Biomass shows a loss of 10% at each trophic level.
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Atmospheric O2 is a waste product of photosynthesis
a. True b. False
Which structure will digest and recycle materials within the cell?
a. Plasma membrane b. Lysosome c. Golgi body d. Rough endoplasmic reticulum e. Nucleus
Between the 1930s and the 1970s, the amount of all of the following except ____ increased in Lake
Erie.
a. coliform bacteria b. phosphorus c. phytoplankton d. sewage e. fish population sizes
The category of organisms that get their energy and nutrients by feeding on the tissues, wastes, or remains of other
organisms are generally called ____.
a. producers b. prokaryotes c. consumers d. archaea e. plants