The eardrum is directly connected to the ____
a. cochlea
b. malleus
c. tympanic membrane
d. round window
e. stapes
ANSWER: b
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The table shows the distribution of traits (A-E) in six extant species (1-6). A "0" indicates the ancestral condition, and a "1" indicates the derived condition. Which species has the greatest number of ancestral character states (pleisiomorpohies)?
A. 1
B. 2
C. 3
D. 4
E. 5
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 cladistics?
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?
Phosphorus deficiency often appears early in plant growth and results in stunting. Which of the following are reasons why a deficiency in phosphorus would cause growth abnormalities in plants? (Check all that apply.)
_____ Phosphorus is required for the storage and transfer of energy. _____ Phosphorus is required for the production of amino acids that form proteins. _____ Phosphorus is required for DNA replication. _____ Phosphorus is necessary for building moleculesin the cell membrane. _____ Without phosphorus, cellular replication is impeded. 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 phosphorus cycle? 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?
Blocking the voltage-gated sodium channels will have what effect on the action potential?
a. The membrane potential will be more positive than normal (greater depolarization) b. The membrane will not depolarize (no action potential) c. The membrane will depolarize but not repolarize d. The membrane will hyperpolarize
Most of the photosynthetic activity of a leaf takes place in the.
A. vascular bundles B. waxy cuticle and epidermis C. palisade and spongy mesophyll D. guard cells and stomata