Stretch reflexes: Multiple Choice
prevent falling.
prevent muscles from being damaged by excessive tension.
aid in maintaining proper posture.
cause the removal of limbs from painful stimuli.
are learned voluntary responses.

aid in maintaining proper posture.

Explanation:

Stretch reflexes are the monosynaptic reflexes. These reflexes are produced by tapping on tendons attached to muscles at the elbow, wrist, knee, and ankle joints. One of the functions of the stretch reflex is to help maintain posture. For example, when a standing person begins to lean forward, stretching of calf muscles initiate the stretch reflexes. These reflexes cause the calf muscles to contract to restore the body’s upright posture. Similarly, stretch reflexes also occur in the muscles of the shin when a standing person begins to lean backward.

answer: land bridge theory. land bridge theory held that shifting portions of dry land explained the finding of identical species on different continents. plate tectonic theory eventually eliminated the land bridge theory.