Biology Past Questions

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4131

Which of the following ecological factors will result in food shortage?

A. Drought
B. Low rate of reproduction
C. Emigration
D. Topography

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4132

Soil permeability refers to

A. how easily water passes through the soil
B. the proportion of air in the soil
C. the proportion of water the soil holds
D. how well water rises up the soil

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4133

Which of the following groups of organisms do not have members that can be called autotrophs?

A. Protists
B. Mosses
C. Chlorophyta
D. Fungi

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4134

Which of the following pyramids gives the most accurate picture of the relationships between at the various trophic levels in a food chain? A pyramid of

A. numbers
B. energy
C. biomass
D. size

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4135

Which of the following statements is not associated with pyramids of energy?

A. Efficiency of energy transfer between trophic levels can be studied
B. Comparisons of pyramids for different ecosystems can be made
C. More accurate comparisons of trophic levels
D. Representation of numbers of organisms at different trophic levels

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