How Many Different Transmitter Chemicals Are Found in the Brain

question 414

Multiple Choice

How many different transmitter chemicals are found in the brain?

• A)fewer than 10
• B)approximately 25
• C)approximately 50
• D)more than 100

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Definitions:

Anaphase I

A stage in meiosis I where homologous chromosomes separate and are pulled to opposite poles of the cell, unlike in mitosis where sister chromatids separate.

Reproductive Strategy

A method or approach employed by species to ensure their continuation through the production of offspring.

Sexual Reproduction

A biological process by which new individual organisms are produced through the combination of genetic materials from two different cells.

Asexual Reproduction

A mode of reproduction by which offspring arise from a single organism, and inherit the genes of that parent only; does not involve the joining of gametes.