Biology
11th Edition
ISBN: 9781259188138
Author: Peter H Raven, George B Johnson Professor, Kenneth A. Mason Dr. Ph.D., Jonathan Losos Dr., Susan Singer
Publisher: McGraw-Hill Education
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Textbook Question
Chapter 48, Problem 1A
When you take a deep breath, your stomach moves out because
a. swallowing air increases the volume of the thoracic cavity.
b. your stomach shouldn’t move out when you take a deep breath because you want the volume of your chest cavity to increase, not your abdominal cavity.
c. contracting your abdominal muscles pushes your stomach out, generating negative pressure in your lungs.
d. when your diaphragm contracts, it moves down, pressing your abdominal cavity out.
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Three of the many recessive mutations in Drosophila melanogaster that affect body color, wing shape, or bristle morphology are black (b) body versus grey in wild type, dumpy (dp), obliquely truncated wings versus long wings in the male, and hooked (hk) bristles versus not hooked in the wild type. From a cross of a dumpy female with a black and hooked male, all of the F1 were wild type for all three of the characters. The testcross of an F1 female with a dumpy, black, hooked male gave the following results:
Trait
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169
Black
19
Black, hooked
301
Dumpy, hooked
21
Hooked, dumpy, black
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6
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Chapter 48 Solutions
Biology
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Ch. 48 - Countercurrent flow systems do not occur in lungs...Ch. 48 - Respiratory organs of invertebrates and...Ch. 48 - Prob. 5ACh. 48 - During exercise more oxygen is delivered to the...Ch. 48 - Compare the operation and efficiency of fish gills...Ch. 48 - What happens when, during exercise, the oxygen...Ch. 48 - Explain how bacteria, archaea, protists, and many...
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