Leaf Abscission

question 63

Multiple Choice

Leaf abscission:

• A) occurs as a response to increased temperatures in temperate climates.
• B) occurs as a response to dry conditions in tropical climates.
• C) involves the formation of a tendril at the base of the petiole.
• D) occurs year-round on deciduous plants.
• E) does not occur in conifers.

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Definitions:

Muscle Bellies

The central, fleshy, contractile parts of muscle tissue that swell during contraction and are responsible for generating force.

Trapezius

A large triangular muscle extending over the back of the neck and shoulders, responsible for moving the scapulae and supporting the arm.

Latissimus Dorsi

A large, flat muscle on the back that helps control the movement of the shoulder.

Epicranius

A muscle of the scalp consisting of the frontalis and occipitalis muscles which are connected by the epicranial aponeurosis.