The Quick Response of the Immune System to a Second

question 24

Multiple Choice

The quick response of the immune system to a second infection is due to the _____,a feature of the immune system as demonstrated by the success of vaccines.

• A) activation of macrophage cells
• B) suppression of suppressor cells
• C) T and B memory cells
• D) high levels of antigen
• E) new cytotoxic T cell.

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Definitions:

Brain Size

A measure of the volume or mass of the brain, often related to an organism's cognitive abilities, but not the sole determinant of intelligence.

Dentition

Refers to the development, arrangement, and number of teeth in animals and humans.

Homo Heidelbergensis

An extinct species of archaic humans that lived approximately 600,000 to 200,000 years ago, known for their large braincase and robust build.

Homo Erectus

An extinct species of human that lived between 1.9 million and 143,000 years ago, known for their upright walking ability.