If a Storm Breaks Off the Top of a Tree

question 20

Multiple Choice

If a storm breaks off the top of a tree, within a year or two, one of the lower branches will grow upward and become the new tree top, while inhibiting other branches from doing the same. This is an example of:

• A)the influence of ethylene.
• B)the formation of an abscission layer.
• C)the presence of cytokinins.
• D)apical dominance.
• E)phytochrome inhibition.

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Definitions:

Joint

A structure in the human or animal body at which two parts of the skeleton are fitted together, allowing for movement or flexibility.

Prefix

A set of letters that is added to the beginning of a word to modify its meaning.

Below

A term used to indicate a position lower than a specific reference point.

Deficient

Lacking in some essential component or quality, often related to nutrition, elements, or resources.