In the accompanying diagram, ____ is responsible for secreting digestive enzymes into the small intestine and

hormones into the blood.



a. D
b. E
c. F
d. G
e. A


ANSWER: d

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

The enzyme that joins the ends of newly synthesized segments of DNA after the primers have been removed is

A. helicase. B. DNA ligase. C. RNA ligase. D. DNA polymerase. E. primase.

Biology & Microbiology

The hole in the ozone layer is primarily due to

A. burning coal. B. CFCs in the upper atmosphere. C. automobile exhaust. D. use of non-CFC aerosols.

Biology & Microbiology

________ acts on proteins to produce peptides which are later broken down into ________ in the small intestine.

A. Pepsin; fatty acids B. Pepsin; amino acids C. Salivary amylase; amino acids D. Maltase; glucose

Biology & Microbiology