Which of these would have been most likely to develop only after the formation of a true cell?
A. autotroph
B. heterotroph
C. protocell
D. microsphere
E. proteinoid
Ans: A. autotroph
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Consider the cladogram shown. If we designate species 1 as the outgroup, which species has the greatest number of ancestral character states (pleisiomorphies)?
A. 2
B. 3
C. 4
D. 5
E. 6
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?
A wound created by the drag of a knife across skin can be classified as
A. puncture. B. incised. C. lacerated. D. contused.
Protein-coding ORFsare easier to identify in which type of organism?
a. eukaryotes because they have easily identifiable regulatory regions b. eukaryotes because they have fewer introns c. prokaryotes because they have few introns d. eukaryotes because they have more exons e. prokaryotes because they have more exons
Building blocks of carbohydrates are amino acids.
a. true b. false