According to the Standard Model

question 62

Multiple Choice

According to the standard model,

• A)the four forces of nature existed from the moment of the Big Bang.
• B)energy in the form of radiation still dominates in the universe.
• C)the four forces of nature were initially unified into a single force.
• D)stable atomic nuclei formed in less than 0.01 s.
• E)the universe was initially very cold and dense.

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Definitions:

Primary Response

Immune response that occurs as a result of the first exposure to an antigen.

Plasma Cells

Specialized white blood cells that produce large volumes of antibodies, which are critical for the immune response to infection.

B-cells

Immune cells that produce antibodies and are an essential part of the adaptive immune response.

Antibodies

Proteins generated by the immune system that recognize and bind to specific foreign particles, such as bacteria and viruses, to help protect the body against infections.