The Use of Agar as the Gelling Agent in Solid

question 60

Multiple Choice

The use of agar as the gelling agent in solid media was suggested by:

• A) Robert Koch
• B) Ignaz Semmelweis
• C) Angelina Hesse
• D) Louis Pasteur
• E) Richard Petri

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Definitions:

Specific Receptor

Specific Receptor refers to a protein molecule that receives and responds to a specific substance or signal, such as a neurotransmitter or hormone, by initiating a specific cellular response.

Pheromone

Chemical substances secreted by animals that influence the behavior or physiology of others of the same species, often related to reproductive signals.

Intersexual Selection

The process by which females select their mates on the basis of some physical trait that indicates genetic quality or good health; sometimes selection depends on some resource offered by the males.

Courtship Ritual

A set of display behaviors in which an organism tries to attract a mate and secure mating opportunities.