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.

Biology & Microbiology

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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?

Biology & Microbiology

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.

Biology & Microbiology

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?

Biology & Microbiology

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.

Biology & Microbiology