Which Statement About Density-Independent Factors Is True

question 1

Multiple Choice

Which statement about density-independent factors is true?

• A) Davidson and Andrewartha's studies of thrips (Thrips imaginis) showed that density-independent factors play a major role in the annual fluctuations of abundance of this species.
• B) Density-independent factors increase the size of populations when population size is low.
• C) Density-independent factors decrease the size of populations when population size is high.
• D) Food and habitat availability are density-independent factors that influence population size.

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Definitions:

Metalloids

Elements with properties that are intermediate between those of metals and solid nonmetals.

Atomic Symbols

Abbreviations assigned to elements based on their names, used for representing elements in chemical formulas and equations.

Chromium

A lustrous, hard, and brittle metallic element used in alloys to increase strength and corrosion resistance.

Krypton

A chemical element with the symbol Kr and atomic number 36, a noble gas used in lighting and photography.