Using no more than 13 propositions<span>, create a Concept Map to </span>compare and contrast<span> the motor neurons in the somatic and </span>autonomic<span> nervous systems. </span>
The structure of the skin is an effective barrier against bacteria. The multiple layers of epidermis, while can be invaded by foreign organisms, has a high turnover rate which means it is constantly shedding, therefore even the bacteria is shed protecting the body. Lastly, the skin's lipids maintain an acidic pH which slows and stops growth and replication of bacteria.
Answer:
a control
Explanation:
you need something to compare it to to see if anything happens
Axon: the messenger cell that carries the command to contract muscles.
