Surfactants function as microbicidal agents because they do what to microorganisms?
A) Inhibit peptide bond formation during translation
B) Interfere with the synthesis of peptidoglycan
C) Prevent mRNA transcription
D) Denature proteins
E) Disrupt the integrity and lower the surface tension of cell membranes
Answer: E) Disrupt the integrity and lower the surface tension of cell membranes
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T cells undergo maturation in the bone marrow.
Answer the following statement true (T) or false (F)
Choose the evidence supporting the argument that a small number of changes in developmental regulatory genes can result in large phenotypic changes.(choose all that apply)
_____ Closely related animals can have very different patterns of development. _____ Most developmental genes are highly conserved. _____ Much of phenotypic variation is environmentally caused. _____ The developmental "toolkit" consists of a large number of genes. Clarify Question · What is the key concept addressed by the question? · What type of thinking is required? · What key words does the question contain and what do they mean? Gather Content · What do you already know about developmental regulatory genes? Consider Possibilities · Consider the different answer options. Which can you rule out? Choose Answer · Given what you now know, what information and/or problem solving approach is most likely to produce the correct answer? Reflect on Process · Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
The primary function of cell-mediated immunity is to
A) protect the body against extracellular parasites. B) decrease the amount of complement. C) destroy cancerous or virus-infected host cells. D) increase the number of macrophages. E) promote the production of antibodies.
Microbial ________ focuses on the nature of heredity and how it regulates the development and function of cells and organisms.
Fill in the blank(s) with the appropriate word(s).