Because light is not hot nor cold.
It is <span>crown, neck, and root. </span>
Answer:
To <em>Experiment</em>.
Explanation:
The scientific method is:
Observation/Question
Research
Hypothesis
Experiment
Collect Data
Analysis
Conclusion
Answer:
The correct option is C. Motor neuron does not fire action potentials
Explanation:
During contraction, the motor nerve passes down an action potential. A neuromuscular junction is formed by the motor neuron which stimulates the entry of calcium ions. The calcium ions bind to structures called as troponin which stimulates the binding of the filaments, actin and myosin. The filaments begin to contract by using ATP.
During relaxation, the action potential is stopped. Calcium is taken back into the sarcoplasmic reticulum. As a result, actin and myosin filaments do not link and hence, the contraction is stopped.
Answer; d.vitamin production
Explanation: The small intestine absorps carbohydrate