Represented by only two living genera, Psilotum and Tmesipteris, these plants resemble the extinct
Cooksonia. Having no true roots or leaves, these seedless vascular plants are essentially forking green
stems.
a. mosses
b. whisk ferns
c. ferns
d. club mosses
e. horsetails
B
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Plants maintain higher levels of phytochrome at their growing tips where phytochrome plays important roles in growth responses to light. Phytochrome levels are also high in areas of the plant that are "greening". What does this suggest about the role of phytochrome in these "greening" zones?
A. Phytochrome is absorbing green wavelengths of light. B. In these areas, phytochrome is the first step in the electron transport chain of photosynthesis. C. Phytochrome is facilitating the transcription and translation of photosynthesis related proteins. D. Phytochrome is facilitating the migration of chlorophyll pigments from other areas of the plant. Clarify Question · What is the key concept addressed by the question? · What type of thinking is required? words does the question contain and what do they mean? Gather Content · What do you already know about the role of phytochrome in plants? 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?
The two major divisions of the vertebrate nervous system are the ____
a. autonomic and peripheral systems b. sympathetic and parasympathetic systems c. cranial and spinal nerves d. central and peripheral nervous systems e. brain and spinal cord
Glycogen consists of beta-glucose monomers
__________________Indicate whether the statement is true or false.
While on a backpacking trip in Maine, Julie and her friends obtained their drinking water from several different pristine streams, adding one or two drops of bleach to ensure its safety. Several days later Julie began experiencing abdominal distress, specifically cramping, fatty diarrhea, and flatulence. When it didn't clear up within several days, Julie visited her doctor. Which of the following would be the most likely cause of Julie's symptoms?
A) E. coli O157:H7 B) Giardia intestinalis C) Entamoeba histolytica D) Schistosoma mansoni E) Toxoplasma gondii