Which of the following activities uses microbial biotransformation?
A. Yogurt production
B. Sewage treatment
C. Production of antibiotics
D. Alcohol production
Answer: C
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If chlorophyll a is blocked from absorbing light, what would be the effect on the ability of the plant to do photosynthesis?
A. The plant will have an enhanced ability to carry out light-dependent reactions B. The plant will have an enhanced ability to carry out light-independent reactions C. The plant will have a decreased ability to carry out light-dependent reactions D. The plant's ability to carry out photosynthesis will be unchanged, as one of the accessory pigments can fill in for chlorophyll a 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 role of pigments during photosynthesis? What other information is related to the question? Choose Answer Do you have all the information needed to determine what would happen? 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?
After returning from a trip to Africa, Tom feels tired and weak and has severe anemia. A blood smear reveals a protozoan in his blood and the health care provider diagnoses malaria. Which of the following could be the causative agent of this disease?
A. Taenia solium B. Plasmodium vivax C. Trichophyton rubrum D. HIV E. Giardia lamblia
Which of the following molecules is MISMATCHED with its source?
a. interferons ? virus-infected cells b. histamine ? mast cells c. lysozyme ? epithelial cells d. immunoglobulin ? B cells e. interleukins ? cytotoxic T cells
The four geologic eras are directly subdivided into
A) eons. B) periods. C) plates. D) sub-eras. E) epochs.