Figure 19.4
The spark discharge in the accompanying figure represents ____.
A. sunlight energy in the environment.
B. heat energy in the environment.
C. electrical energy in the environment.
D. ionizing radiation in the environment.
E. the explosion of the hydrogen gas to release energy for the reactions.
Answer: C
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In the disease myasthenia gravis, the immune system attacks the receptors for the neurotransmitter acetylcholine. A drug is used to inhibit the enzyme acetylcholinesterase, which normally removes the neurotransmitter. This improves the condition of the
patient. How does this work? What will be an ideal response?
Based on the phylogeny shown, we can conclude that species 2 is most closely related to species
A. 1.
B. 3.
C. 4.
D. 5.
E. 1 or 3 (can't tell).
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 phylogenetic trees?
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?
Which place should you choose to avoid living in if you were concerned about male infertility and low sperm count?
A) a farm in North Dakota B) Los Angeles C) Boston D) Miami
Put the following steps of DNA replication in chronological order.
1. Single-stranded binding proteins attach to DNA strands. 2. Hydrogen bonds between base pairs of antiparallel strands are broken. 3. Primase binds to the site of origin. 4. DNA polymerase binds to the template strand. 5. An RNA primer is created. A. 2, 1, 3, 5, 4 B. 3, 1, 5, 4, 2 C. 1, 5, 3, 4, 2 D. 3, 5, 1, 2, 4