The causative agent of Hansen's disease is
A) Mycobacterium marinum.
B) Mycobacterium ulcerans.
C) Mycobacterium hansen.
D) Mycobacterium leprae.
Answer: D
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For each structure described below, choose the cytoskeletal element that it best characterizes: a. microtubules b. microfilaments c. intermediate filaments
________ the cytoskeletal elements with the widest diameter ________ the cytoskeletal elements with the narrowest diameter _______ double helices of polymerized actin proteins ________ strong fibers of more than a hundred different types ________ hollow tube-like structures made of polymerized tubulin protein dimers ________ proteins in the nucleus which give shape and support the nuclear envelope What will be an ideal response?
What other information is related to the question? Which information is most useful?
What will be an ideal response?
Seagrasses can reach high productivity levels with the aid of:
a. oxygen brought to their roots via mud shrimp burrows. b. symbiotic, nitrogen-fixing bacteria. c. their leaves, cleared of epiphytes by grazers. d. fertilization by manatees. e. eutrophic water conditions.
What is the role of a CAM plant?
A) It uses 4-carbon sugars to pump carbon dioxide molecules to the Calvin cycle. B) It is often used in agriculture because of its ability to conserve water. C) It slows water loss by opening stomata only at night. D) It tends to grow very slowly because of its inability to undergo the Calvin cycle.