Which Most Completely Describes the Circumstances Under Which Yarrow Will

Question

Which most completely describes the circumstances under which yarrow will alter its phenotype?  
A) Temperature, soil conditions, and water conditions
B) Soil conditions only
C) Being produced by sexual versus asexual reproduction
D) Water conditions only
E) Asexual reproduction, soil conditions, and water conditions

Accepted Answer

Yarrow is a type of plant that is known to be highly responsive to environmental changes, and altering its phenotype is one of the mechanisms by which it adapts to these changes. The three most important environmental factors that affect yarrow's phenotype are temperature, soil conditions, and water conditions. Therefore, option A is the most complete and accurate description of the circumstances under which yarrow will alter its phenotype.