Question: Suzanne has been having difficulty falling asleep and waking up in the morning. She has also noticed that her appetite has changed and that she has become somewhat more aggressive. What neurotransmitter is MOST likely involved in Suzanne's symptoms?
A. serotonin
B. glutamate
C. dopamine
D. GABA (gamma-aminobutyric acid)
E. acetylcholine
Answer:
"Serotonin" neurotransmitter is MOST likely involved in Suzanne's symptoms
Explanation:
Serotonin is an important chemical and neurotransmitter in the human body. It is believed to help regulate mood and social behavior, appetite and digestion, sleep, memory, and sexual desire and function. There may be a link between serotonin and depression. Serotonin is primarily found in the enteric nervous system located in the gastrointestinal tract (GI tract). However, it is also produced in the central nervous system (CNS), specifically in the Raphe nuclei located in the brain stem.
A.) Pollen are well preserved in the sediment layers because they are highly resistant to decay.
B.) Other indicators that can be used to determine past climates are through the analysis of the width of tree rings and the coral reefs formed underwater.
