I found the attached image on the internet related to this question.
The solid arrows represent neuronal communication. The stimulus, the effects, and the flow of information is all done by receptors and synapses that send a signals across the body in order to have effective feedback responses promoting the homeostasis of the organism.
Answer:
<u>B. Lithium, because it has two energy levels with one electron in the second level.</u>
Advancement in technology over the years has definitely helped in improving the diagnosis of a person’s health condition.
<u>Explanation:</u>
Internal injuries can be easily diagnosed using methods like x-Ray and scanning. Technological advancements have helped immensely in the field of oncology. Detection of tumors has become easy with the arrival of computerized tomography and MRI scanning.
CT scans give a better image of internal organs than X-Rays and detection of conditions like heart disease, cancer, emphysema, liver disease etc has become easier. Magnetic Resonance Imaging also gives a clear picture of the internal organs.