Represented by only one living genus, Equisetum, ____ have leaves in whorls around a photosynthetic stem that is
stiff and gritty because it is rich with silica.
a. mosses
b. whisk ferns
c. ferns
d. club mosses
e. horsetails
ANSWER: e
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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?
What will be an ideal response?
You and your neighbor each have a holly bush in your yards. You carefully water and care for your bush, but it fails to produce berries. Your neighbor, on the other hand, neglects his holly, yet it produces gorgeous red berries each year. Finally, in frustration, you replace your holly with a rose bush. The next year, your neighbor’s holly bush has no berries at all. What happened?
A. Roses compete for the same insect pollinators as holly bushes. B. Holly plants are dioecious. Yours was a male that was needed to pollinate the neighbor’s female. C. Roses secrete a chemical that inhibits the reproduction of neighboring plants. D. The neighbor’s bush became infected with the same disease that yours had. 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 dioecious plants? What other information is related to the question? Choose Answer Given what you now know, what information 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?
Which molecule is the most abundant in the extracellular matrix of connective tissues?
a. collagen b. cholesterol c. fibronectin d. albumin e. elastin
Conduction from node to node
a. occurs only in the central nervous system. b. is a rapid type of nerve conduction. c. occurs between nerves and muscles. d. involves the "jumping" of impulses. e. is a rapid type of nerve conduction and involves the "jumping" of impulses