A Researcher Who Wants to Know How Many Tree Seedlings

question 53

Multiple Choice

A researcher who wants to know how many tree seedlings are in a 1-hectare site counts the number of seedlings within five 2-square-metre subplots and then calculates the average. This method of determining the number of individuals in an area is known as a

• A) census.
• B) survey.
• C) tally.
• D) count.

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Definitions:

Boiling Point

The temperature at which a substance transitions from the liquid phase to the gas phase under standard atmospheric pressure.

Compounds

Substances formed by chemically bonding two or more elements together in definite proportions.

Compound

A material composed of at least two elements that are chemically united in a constant proportion.

Soluble

Capable of being dissolved in a solvent, typically referring to the ability of a substance to dissolve in a particular liquid.