Observations are used with observing, forming a hypothesis, and analyzing data.
Answer:
The answer would be the nucleus
Explanation:
took the test
Stimuli is detected by receptor cells . These stimuli are converted to electrical nerve impulses carried by sensory neurone to relay neurone where it is processed by Central Nervous System . The response is carried by the motor neurone to the effector s which are muscles or glands which reacts to the situation
A Mutation occurs when a DNA gene is damaged or changed in such a way as to alter the genetic message carried by that gene