In a survivorship curve, a type II species, like a song bird, is a species that has
A. the highest probability of dying as it reaches its maximum life span.
B. an extremely short life span.
C. a strong possibility of becoming extinct in a relatively short period of time.
D. an equal probability of dying at any age.
E. the highest probability of dying at a very young age.
D. an equal probability of dying at any age.
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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?
Complementation studies can be performed in bacteria by
A) gene targeting. B) forming merodiploids with one copy of a bacterial gene on an F? plasmid. C) forming merodiploids with two copies of a bacterial gene on F? plasmids. D) forming diploids with two copies of the bacterial chromosome.
Which process in the diagram causes the greatest insulin release?
A. II
B. III
C. I
D. both I and II equally
E. both II and III equally
Clarify Question
· What is the key concept addressed by the question?
· What type of thinking is required?
Gather Content
· What do you know about the release of insulin? 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?
Turgor pressure in plant cells is
A. due in part to osmosis. B. a result of the walled cell being in a hypotonic environment. C. All of the answer choices are correct. D. the force of water against the inside of the cell wall. E. necessary to keep plants from wilting.