You inoculate a culture into a test tube containing broth and take it out of the incubator the next day. You see the culture is growing at the bottom of the tube. You conclude the culture must be
A. aerobic.
B. anaerobic.
C. facultative anaerobe.
D. microaerophilic.
E. aerotolerant.
Answer: B. anaerobic.
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The figure below shows the relationship between beak depth in the medium ground finch on Daphne Major and relative fitness. Assuming that beak depth is heritable, what do you predict about beak depth in the next generation?
A. Mean beak depth will decrease.
B. Mean beak depth will increase.
C. Mean beak depth will stay about the same.
D. Mean beak depth in the next generation cannot be predicted using this data.
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 relative fitness? 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?
Which concept represents the lowest degree of certainty?
a. hypothesis b. conclusion c. fact d. principle e. theory
The mating of totally unrelated homozygous strains of corn produced a new strain of corn that was
very different from both parental strains in many characteristics. Give some reasons to explain this phenomenon What will be an ideal response?
What types of membrane proteins catalyze reactions in the extracellular fluid or within the cell?
a. receptor proteins b. channel proteins c. recognition proteins d. enzymes