Cells within a biofilm excrete an adhesive matrix primarily composed of ________ but can also contain nucleic acids as well as proteins
A) lipids
B) fatty acids
C) monomers
D) polysaccharides
Answer: D
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Consider the cladogram shown. Based on this cladogram, which species has the greatest number of ancestral character states?
A. 1
B. 2
C. 3
D. 4
E. 5
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 cladistics?
Consider Possibilities
· 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?
The first surgical antiseptic to be used was
A. ethanol. B. phenol. C. iodine. D. None of the choices are correct.
Given the structure of the anti-HIV drug azidothymidine (AZT), how do you think it blocks viral replication?
a. It blocks RNA synthesis b. It inhibits host T cells from replicating c. It inhibits the assembly of new viruses in the cell d. It blocks DNA synthesis e. It prevents HIV from entering the cell
A circulatory system in which the heart pumps blood to tissues throughout the body cavity is
A. a closed circulatory system. B. a gastrovascular cavity. C. an incomplete circulatory system. D. a complete circulatory system. E. an open circulatory system.