All of the following are methods of avoiding host antibodies EXCEPT
A) antigenic changes.
B) IgA proteases.
C) invasins.
D) membrane-disrupting toxins.
E) inducing endocytosis.
D
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For bacteriophage with +ssRNA as their genome, which type of nucleic acid is used as the template for the production of more genomic RNA?
A. dsDNA B. dsRNA C. -ssDNA D. -ssRNA
What is a fruit?
A. A mature ovary B. A plant embryo C. A swollen plant zygote D. The protective endosperm
Organs are composed of tissues, which are composed of cells. This is an example of which characteristic of life?
A. Living things grow and develop B. Living things respond to stimuli C. Living things maintain themselves by homeostasis. D. Living things have levels of hierarchical organization. E. Living things are adapted to the environment.
A(n) essential amino acid is one that the body cannot synthesize in sufficient amounts
__________________ Indicate whether the statement is true or false.