Vaccinations are given to humans to minimize the spread of ALL of the following diseases EXCEPT
a. brucellosis.
b. diphtheria.
c. tetanus.
d. whooping cough.
Answer: A
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Some biologists argue that transposable elements provide benefits to a given species. Which of the following does not describe a potential benefit offered by transposable elements?
A. Increases genetic variation. B. Inserts into functionally important genes. C. Codes for a gene that confers antibiotic resistance. D. Codes for a gene that increases survival.
Humus often enhances the water and nutrient-retaining properties of topsoil. Which of the following might increase the humus content of a soil? Check all that apply.
_____ mushroom compost _____ leaf litter _____ ground limestone _____ phosphate fertilizer _____ fish meal 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 humus? How does it relate to the question? 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?
How does ATP release energy that can be used by living cells?
A) By being exposed to body heat B) By breaking a bond within an ATP molecule C) By being exposed to sunlight D) By adding more phosphate groups to itself
The passageways in the nuclear envelope for movement of substances to and from the nucleus and cytoplasm are called nuclear ________.
Fill in the blank(s) with the appropriate word(s).