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melisa1 [442]
3 years ago
8

The selective serotonin uptake inhibitors, like the antidepressants Prozac, Zoloft, or Paxil, result in increased levels of sero

tonin at synapses, which may _____ initially but then lead to _____.
Biology
1 answer:
never [62]3 years ago
3 0

Answer:

increase anxiety; decreased vulnerability to overreact to stress

Explanation:

Serotonin (5-HT) is a natural neurotransmitter that carries signals between nerve cells (neurons) throughout the body. This neurotransmitter (serotonin) is responsible for regulating many biological functions (e.g., mood, digestion, sleep, etc). Moreover, it has been shown that there is an association between low cerebrospinal fluid 5-hydroxyindole-acetic acid (5-HIAA, the principal serotonin metabolite in the brain) levels and the risk of developing depression or destructive behaviors. In addition, serotonin concentration can also be elevated in situations of anxiety and/or stress. Antidepressants such as Prozac, Zoloft and Paxil act as serotonin uptake inhibitors that increase serotonin concentration at the synaptic site. Like other drugs, these antidepressants may lead to increase anxiety and decrease the vulnerability to react to stress by downregulating sensitivity to serotonin released during natural stress situations.

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kumpel [21]

Answer:

<u>Allopatric speciation</u> is the gradual emergence of two or more species as a result of the geographic separation of two or more groups of animals of the same species.

Explanation:

Speciation is the gradual process by which populations evolve in different species. It is understood by allopatric speciation, that gradual speciation that occurs due to geographical isolation between biological populations of the same species. During this speciation, a population is divided by some geographical barrier, when populations are physically isolated due to geographical barriers (rivers, mountains, among others), the genetic flow between them is interrupted and over time different races will evolve that will become in different species.

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3 years ago
The man responsible for devising the modern scientific classification system still in use today is ______ .
omeli [17]
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3 0
3 years ago
Similarities and differences between rna molecules
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Three<span> major </span>types of RNA<span> are mRNA, or messenger </span>RNA<span>, that serve as temporary copies of the information found in DNA; rRNA, or ribosomal </span>RNA<span>, that serve as structural components of protein-making structures known as ribosomes; and finally, tRNA, or transfer </span>RNA<span>, that ferry amino acids to the ribosome to be assembled</span>
5 0
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Which of the following statements about cyst formation is true?
sveta [45]
What are the statements?

7 0
3 years ago
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5. DNA replication of the circular chromosome in E. coli begins when a protein called DnaA binds to the replication origin on th
dem82 [27]

Answer:

Adenine; Thymine

Explanation:

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  • Between A and T bases there are only 2 hydrogen bonds (not a very strong interaction so requires less energy to separate) while between C and G bases there are 3 hydrogen bonds (strong interaction thus requires more energy to separate)
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3 years ago
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