Which non-specific defense mechanism is mismatched with its associated body structure or body fluid?

A) lysozyme — tears and saliva
B) mucociliary escalator — intestines
C) very acidic pH — stomach
D) keratin and tightly packed cells — skin
E) cerumen and sebum — ear


B

Biology & Microbiology

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In Mendel's garden peas, each cell in a pea plant has a total count of:

A. one allele for each gene. B. two alleles for each gene. C. one allele for each gene if it is a truebreeding parent and two if it is an F1 offspring. D. one allele for each gene if it has green seeds and two if it has yellow seeds. E. between one and four alleles for each gene.

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Groups of cells that share a common structure and function are considered to be

a. organs. b. mesenteries. c. colonies. d. tissues. e. organ systems.

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Four of the five structures listed below are parts of

the central nervous system. Select the exception. a. spinal cord b. medulla c. ganglia d. cerebellum e. cerebrum

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Bacterial plasmids often have genes that code for genetic exchange or antibiotic resistance

____________________ Indicate whether the statement is true or false.

Biology & Microbiology