The optimal temperature for most human pathogens might be expected to range from
A. 35-40?C.
B. 20-45?C.
C. 15-25?C.
D. 93-98.6?C.
A
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________ are charged molecules that are partially responsible for the ________ charge of the gram-positive bacterial cell surface
A) Diaminopimelic acids / positive B) Teichoic acids / negative C) Phospholipids / negative D) Peptide interbridges / neutral
You have discovered a new gene similar to an integrin. If you misexpress this gene in the wrong tissue early in development, what is a likely phenotype?
A. migration into the wrong area B. apoptosis C. homeotic transformation D. defects in anterior-posterior patterning 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 integrins? 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?
(Please choose from the lettered responses below.) Phylogenetic trees help us understand: 1. the genetic relationships among a species. 2. the evolutionary relationships among a species. 3. the relationships of symmetry among related species. 4. the level
A. 1 and 2 B. 2 and 3 C. 2 and 4 D. 3 and 4
Diving mammals like whales and seals experience frequent periods when they are not able to breathe air. Which of the following is a muscle adaptation they show to this challenge?
A. increased myoglobin concentrations B. increased capillary densities C. increased amounts of sarcoplasmic reticulum D. increased expression of acetylcholine receptors E. All of the choices for this question are correct.