Figure 54-1 ​ ​

question 81

Multiple Choice

Figure 54-1 ​

​
In Experimental Condition 1 of the accompanying figure, the distribution of Balanus suggests that:

• A) interspecific competition kept Balanus from extending higher into the intertidal area.
• B) intraspecific competition kept Balanus from extending higher into the intertidal area.
• C) an unfavorable environmental factor kept Balanus from extending higher into the intertidal area.
• D) Balanus is less motile than Chthamalus .
• E) Balanus is more motile than Chthamalus .

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Definitions:

Antibody-Mediated Immunity

A type of immune response where B cells produce antibodies that target and neutralize foreign pathogens, such as viruses and bacteria.

Cell-Mediated Immunity

A form of immune response that does not involve antibodies, but rather involves the activation of phagocytes, antigen-specific cytotoxic T-lymphocytes, and the release of various cytokines in response to an antigen.

Memory Cells

Specialized immune cells that remain in the body after an initial exposure to an antigen, providing immunity by responding more rapidly and effectively to subsequent exposures.

Antibody-Mediated Immunity

A component of the adaptive immune system where B cells produce antibodies to identify and neutralize foreign substances like bacteria and viruses.