The fact that a red-flowered snapdragon bred to a white-flowered snapdragon produces pink-flowered offspring is an example of
A) codominance.
B) pleiotropy.
C) incomplete dominance.
D) blending inheritance.
C
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The removal of a single or small groups of mature trees is called
A. selective cutting. B. seed-tree cutting. C. clear-cutting. D. shelterwood cutting. E. strip cutting.
In general, the healthiest soil texture for plants is one in which
A) sand dominates, clays are next highest in concentration, and silt has the smallest concentration. B) clay dominates, sands are next highest in concentration, and silt has the smallest concentration. C) sand dominates, silts are next highest in concentration, and clay has the smallest concentration. D) there is a relatively even percentage of sand, silt, and clay.
The albedo of water is highest when the sun is directly overhead
Indicate whether the statement is true or false
In contrast to the mafic volcanism at rift zones, subduction zone lavas are lower in iron content but significantly higher in
A. water and silica. B. calcium and silica. C. water and magnesium. D. magnesium and silica.