Why was it important that Darwin visited islands, and then compared island species with continental species?
A. Because Darwin found unique species on the islands. These island species did not have any of the characteristics of their ancestral continental species.
B. Because Darwin's attention was drawn to the uniqueness of the island species, even though they retained some resemblance to continental species.
C. Because Darwin's attention was drawn to the uniqueness and variety of finches on the islands, determining that their adaptations came from eating different food than continental species.
D. Because Darwin saw very low reproductive survival rates on the island as compared to the mainland.
E. Because Darwin observed continental species of finch flying to the islands.
C. Because Darwin's attention was drawn to the uniqueness and variety of finches on the islands, determining that their adaptations came from eating different food than continental species.
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A flower that lacks any one of its floral parts might be called:
A. misrepresented B. misinterpreted C. fatally flawed D. incomplete E. mostly complete
In Cell 2,
Consider the following plant cells floating in an open beaker containing 0.2M sucrose. By definition, an open beaker has a pressure potential 0 MPa. Assume that the cells have come to equilibrium with the solution in the beaker.
A. ?p = 0.75 MPa and ?w = 0.0 MPa.
B. ?p = 0.0 MPa and ?w = -0.75 MPa.
C. ?p = -0.25 MPa and ?w = -0.5 MPa.
D. ?p = +0.25 MPa and ?w = -0.5 MPa.
E. ?p = +0.25 MPa and ?w = +0.25 MPa.
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 water potential? 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?
A group of cells is assayed for DNA content immediately following mitosis and is found to have an average of 8 picograms of DNA per nucleus. How many picograms would be found at the end of S and the end of G2?
A) 8; 8 B) 8; 16 C) 16; 8 D) 16; 16
What is the selective advantage for a male to participate in a polyandrous mating system?
A. He is more likely to obtain more mates than if he did not cooperate. B. He cannot outcompete other males for female attention. C. His offspring are unlikely to survive without his parental care. D. He cannot provide any parental care.