Why Do Ecologists Count Representative Samples of a Population and Not

question 78

Multiple Choice

Why do ecologists count representative samples of a population and not the total population under study?

• A) to get a precise number
• B) because it is impractical to count all the members of the population
• C) because it is the way that ecologists study ecosystems
• D) to get an estimate before counting the whole population
• E) because a representative sample more accurately reflects the carrying capacity

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Definitions:

Guard Cells

Pairs of cells surrounding stomata in plant leaves and stems, regulating gas exchange and water loss by controlling the opening and closing of stomata.

Epidermis

The outermost layer of cells covering an organism, particularly the surface epithelium of the skin or outer layer of leaves and other plant organs.

Parenchyma

A type of living plant tissue consisting of relatively unspecialized cells with thin cell walls that function in photosynthesis, storage, and as the site of many metabolic processes.

Tracheids

Tracheids are elongated cells in the xylem of vascular plants that serve in transport and structural support, facilitating the flow of water.