<span>In the "all or none" law of muscle contraction, it states that when the stimulus applied exceeds threshold then the the nerve sending signals to a few muscle fibers will give a complete response; contraction. Graded response is dependent on how many motor units have been recruited. The more motor units, the greater the force in the contraction.</span>
Answer:
Q3:False, the oldest layers are found in the lower layers
Q2: A, a layer or a series of layers of rock in the ground
Q5: D
Q4: possibly D
Explanation:
Movement and balance are monitored by activity in the cerebellum.
<h3>What is meant by the cerebellum?</h3>
The cerebellum, also known as the "little brain" because it resembles a miniature cerebrum, is in charge of balance, movement, and coordination. The pons and medulla, along with the midbrain, are commonly referred to as the brainstem. The brainstem receives, sends, and coordinates messages from the brain.
The cerebellum is the area of the brain in charge of coordinating voluntary movements. It is also in charge of a variety of functions, including motor skills like balance, coordination, and posture.
The cerebellum is important for maintaining balance by making postural adjustments. It modulates commands to motor neurons based on input from vestibular receptors and proprioceptors to compensate for changes in body position or muscle load.
Therefore, the correct answer is option B) cerebellum.
To learn more about the cerebellum refer to:
brainly.com/question/5318535
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