The meshwork that forms the framework of a blood clot is _____

A) chymotrypsin
B) fibrin
C) thrombin
D) prothrombin
E) collagen


Answer: B

Biology & Microbiology

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Various techniques have been developed to isolate strains of bacteria carrying a particular mutation. One of them is, bacteria containing wild-type cells and cells of a desired mutant are grown on a medium lacking the nutrient for which the desired mutants are auxotrophic but containing an antibiotic that only kills growing cells. In this environment,  

A.  both wild-type and mutant cells are killed. B.  both wild-type and mutant cells survive. C.  wild-type cells survive; mutant cells die. D.  wild-type cells die; mutant cells survive. E.  only double mutants survive. Clarify Question · What is the key concept addressed by the question? · What type of thinking is required?   Gather Content · What do you already know about the bacteria? How does it relate to the question? · What other information is related to the question? Which information is most useful? 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?

Biology & Microbiology

An example of megaplankton would be:

a. larval fishes. b. Sargassum seaweed. c. invertebrate larvae. d. green flagellates. e. copepods.

Biology & Microbiology

Which labs would indicate a client has systemic lupus erythematosus? Select all that apply.

Anti-nuclear antibodies Hemoglobin and hematocrit (H&H) Red blood cells Platelets Erythrocyte sedimentation rate

Biology & Microbiology

The cytoplasmic membranes of ________ may contain branched hydrocarbons

A) archaeal cells B) bacterial cells C) eukaryotic cells D) both bacterial and eukaryotic cells E) archaeal, bacterial, and eukaryotic cells

Biology & Microbiology