Biology: Life on Earth
10th Edition
ISBN: 9780321729712
Author: Gerald Audesirk, Teresa Audesirk, Bruce E. Byers
Publisher: Benjamin Cummings
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Textbook Question
Chapter 27, Problem 5RQ
Define succession. Which type of succession would occur on a clear-cut forest (where all trees have been logged) and why?
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Ch.23
How is Salmonella able to cross from the intestines into the blood?
A. it is so small that it can squeeze between intestinal cells
B. it secretes a toxin that induces its uptake into intestinal epithelial cells
C. it secretes enzymes that create perforations in the intestine
D. it can get into the blood only if the bacteria are deposited directly there, that is, through a puncture
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Which virus is associated with liver cancer?
A. hepatitis A
B. hepatitis B
C. hepatitis C
D. both hepatitis B and C
—
explain your answer thoroughly
Ch.21
What causes patients infected with the yellow fever virus to turn yellow (jaundice)?
A. low blood pressure and anemia
B. excess leukocytes
C. alteration of skin pigments
D. liver damage in final stage of disease
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What is the advantage for malarial parasites to grow and replicate in red blood cells?
A. able to spread quickly
B. able to avoid immune detection
C. low oxygen environment for growth
D. cooler area of the body for growth
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Which microbe does not live part of its lifecycle outside humans?
A. Toxoplasma gondii
B. Cytomegalovirus
C. Francisella tularensis
D. Plasmodium falciparum
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explain your answer thoroughly
Ch.22
Streptococcus pneumoniae has a capsule to protect it from killing by alveolar macrophages, which kill bacteria by…
A. cytokines
B. antibodies
C. complement
D. phagocytosis
—
What fact about the influenza virus allows the dramatic antigenic shift that generates novel strains?
A. very large size
B. enveloped
C. segmented genome
D. over 100 genes
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explain your answer thoroughly
Chapter 27 Solutions
Biology: Life on Earth
Ch. 27 -
1. Organisms that interact serve as agents of...Ch. 27 - Prob. 2FTBCh. 27 - Fill-in-the-Blank Competition occurs whenever two...Ch. 27 - Prob. 4FTBCh. 27 -
5. Fill in the appropriate type of community...Ch. 27 -
6. A somewhat predictable change in community...Ch. 27 - Define an ecological community, and describe the...Ch. 27 - Describe several key ways in which specific plants...Ch. 27 - Explain how resource partitioning is a logical...Ch. 27 - Define parasitism and mutualism and provide an...
Ch. 27 - Define succession. Which type of succession would...Ch. 27 - 5. Provide examples of two climax and two...Ch. 27 - Prob. 7RQCh. 27 - Prob. 8RQCh. 27 - Herbivorous animals that eat seeds are considered...Ch. 27 - Prob. 2ACCh. 27 - As a frogfish sits camouflaged on the ocean floor,...Ch. 27 - Prob. 4AC
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