Lichen Can Be Useful as Pollution Indicator Species; Lacking a Cuticle,they

question 25

True/False

Lichen can be useful as pollution indicator species; lacking a cuticle,they tend to readily absorb airborne pollutants.

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Definitions:

Standard Deviation

Standard deviation is a measure of the amount of variation or dispersion of a set of values, indicating how much the values in a data set differ from the mean.

Confidence Interval

A range of values, derived from sample statistics, that is believed to contain the value of an unknown population parameter with a certain probability.

Vegetarians

Individuals who abstain from consuming meat, and sometimes other animal products, for ethical, environmental, or health reasons.

Random Sample

A sample drawn in such a way that each member of the population has an equal chance of being included.