Each type of cone cell is stimulated by a different color of light. In humans, a colorful scene is perceived as a combination of signals from three cone types. Which colors correspond to these three cones?

I-Red
II-Yellow
III-Orange
IV-Blue
V-Green
VI-Purple  
A.  I, II, and III
B.  I, III, and IV
C.  I, IV, and V
D.  I, V, and VI
E.  II, IV, and VI


C.  I, IV, and V

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 trait is least informative of phylogenetic relationships within the group?  



A.  A
B.  B
C.  C
D.  D
E.  E

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

Which of the following features of a pathogen is not considered to be a virulence factor when establishing infection within host?

A. Attachment fimbriae B. Slime layer C. Pigment production D. Protein spikes

Biology & Microbiology

Members of which group are known to form blooms known as red tides?

a. green algae b. red algae c. euglenoids d. dinoflagellates e. brown algae

Biology & Microbiology

By definition, a direct parasitic life cycle includes two different species of hosts to complete its life cycle

a. true b. false

Biology & Microbiology