ANATOMY+PHYSIOLOGY (LOOSELEAF)+LAB+ACC
18th Edition
ISBN: 9781323835982
Author: Martini
Publisher: PEARSON
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Chapter 18.1, Problem 12SR
Summary Introduction
To label: The structure that is numbered 12 in the given figure of a heart.
Introduction: The heart is a muscular organ. It pumps the blood all over the body through the circulatory system. It pumps deoxygenated blood to the lungs and oxygenated blood to the rest of the body. Thus, the human heart is called a dual pump. The blood vessels and the heart together constitute the cardiovascular system. The study of the heart is called cardiology.
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Use the following information to answer the question(s) below.
Martin Wikelski and L. Michael Romero (Body size, performance and fitness in Galápagos marine iguanas, Integrative and
Comparative Biology 43 [2003]:376-86) measured the snout-to-vent (anus) length of Galápagos marine iguanas and observed
the percent survival of different-sized animals, all of the same age. The graph shows the log snout-vent length (SVL, a
measure of overall body size) plotted against the percent survival of these different size classes for males and females.
Survival (%)
100-
80-
60-
40-
20-
0+
1.9
T
2 2.1
2.2 2.3 2.4 2.5 2.6 2.7
Log SVL (mm)
19) Examine the figure above. What type of selection for body size appears to be occurring in these marine iguanas?
A) directional selection
B) stabilizing selection
C) disruptive selection
D) You cannot determine the type of selection from the above information.
3
24) Use the following information to answer the question below.
Researchers studying a small milkweed population note that some plants produce a toxin and other plants do not.
They identify the gene responsible for toxin production. The dominant allele (T) codes for an enzyme that makes
the toxin, and the recessive allele (t) codes for a nonfunctional enzyme that cannot produce the toxin.
Heterozygotes produce an intermediate amount of toxin. The genotypes of all individuals in the population are
determined (see table) and used to determine the actual allele frequencies in the population.
TT
0.49
Tt
0.42
tt
0.09
Refer to the table above. Is this population in Hardy-Weinberg equilibrium?
A) Yes.
C) No; there are more homozygotes than expected.
B) No; there are more heterozygotes than expected.
D) It is impossible to tell.
30)
A
B
CDEFG
Refer to the accompanying figure. Which of the following forms a monophyletic group?
A) A, B, C, and D
B) C and D
C) D, E, and F
D) E, F, and G
Chapter 18 Solutions
ANATOMY+PHYSIOLOGY (LOOSELEAF)+LAB+ACC
Ch. 18.1 - Prob. 1RCh. 18.1 - Prob. 2RCh. 18.1 - Prob. 3RCh. 18.1 - Prob. 4RCh. 18.1 - Prob. 5RCh. 18.1 - Prob. 6RCh. 18.1 - The anterior view of the heart is dominated by...Ch. 18.1 - Prob. 8RCh. 18.1 - Name and describe the shallow depressions and...Ch. 18.1 - Prob. 10R
Ch. 18.1 - Prob. 11RCh. 18.1 - Prob. 12RCh. 18.1 - Prob. 13RCh. 18.1 - Prob. 14RCh. 18.1 - Prob. 15RCh. 18.1 - Prob. 16RCh. 18.1 - Prob. 17RCh. 18.1 - Prob. 18RCh. 18.1 - Prob. 19RCh. 18.1 - Prob. 20RCh. 18.1 - Prob. 1LOCh. 18.1 - Prob. 2LOCh. 18.1 - Describe the structure of the pericardium and...Ch. 18.1 - Prob. 4LOCh. 18.1 - Describe the major vessels supplying the heart,...Ch. 18.1 - Prob. 6LOCh. 18.1 - Prob. 7LOCh. 18.1 - Prob. 8LOCh. 18.1 - Prob. 1ICh. 18.1 - Prob. 2ICh. 18.1 - C. Why is it important that cardiac tissue contain...Ch. 18.1 - Prob. 4ICh. 18.1 - Labeing: Label each of the structures in this...Ch. 18.1 - Prob. 2SRCh. 18.1 - Prob. 3SRCh. 18.1 - Prob. 4SRCh. 18.1 - Prob. 5SRCh. 18.1 - Prob. 6SRCh. 18.1 - Prob. 7SRCh. 18.1 - Prob. 8SRCh. 18.1 - Prob. 9SRCh. 18.1 - Prob. 10SRCh. 18.1 - Prob. 11SRCh. 18.1 - Prob. 12SRCh. 18.1 - Prob. 13SRCh. 18.1 - Prob. 14SRCh. 18.1 - Prob. 15SRCh. 18.1 - Prob. 16SRCh. 18.1 - Prob. 17SRCh. 18.1 - Prob. 18SRCh. 18.1 - Prob. 19SRCh. 18.1 - Prob. 20SRCh. 18.1 - Prob. 21SRCh. 18.1 - Prob. 22SRCh. 18.1 - Prob. 23SRCh. 18.1 - Prob. 24SRCh. 18.1 - Prob. 25SRCh. 18.1 - Prob. 26SRCh. 18.1 - Prob. 27SRCh. 18.1 - Prob. 28SRCh. 18.1 - Prob. 29SRCh. 18.1 - Prob. 30SRCh. 18.1 - Prob. 31SRCh. 18.1 - Prob. 32SRCh. 18.1 - Matching: Match each lettered term with the most...Ch. 18.1 - Prob. 34SRCh. 18.1 - Prob. 35SRCh. 18.2 - Prob. 1RCh. 18.2 - Prob. 2RCh. 18.2 - Prob. 3RCh. 18.2 - Prob. 4RCh. 18.2 - Why does tetany not occur in cardiac muscle?
Ch. 18.2 - Prob. 6RCh. 18.2 - Prob. 7RCh. 18.2 - Prob. 8RCh. 18.2 - Prob. 9RCh. 18.2 - Prob. 10RCh. 18.2 - Prob. 11RCh. 18.2 - Prob. 12RCh. 18.2 - Prob. 13RCh. 18.2 - Prob. 14RCh. 18.2 - Prob. 15RCh. 18.2 - Prob. 16RCh. 18.2 - Prob. 1LOCh. 18.2 - Prob. 2LOCh. 18.2 - Prob. 3LOCh. 18.2 - Prob. 4LOCh. 18.2 - Prob. 5LOCh. 18.2 - Describe the factors affecting the heart rate.
Ch. 18.2 - Prob. 7LOCh. 18.2 - Prob. 8LOCh. 18.2 - Prob. 1ICh. 18.2 - Prob. 2ICh. 18.2 - Prob. 3ICh. 18.2 - Prob. 4ICh. 18.2 - Prob. 5ICh. 18.2 - Prob. 1SRCh. 18.2 - Prob. 2SRCh. 18.2 - Prob. 3SRCh. 18.2 - Prob. 4SRCh. 18.2 - P wave
cardiac output
autorhythmicity
“lubb”...Ch. 18.2 - Prob. 6SRCh. 18.2 - Prob. 7SRCh. 18.2 - Prob. 8SRCh. 18.2 - Prob. 9SRCh. 18.2 - Prob. 10SRCh. 18.2 - Prob. 11SRCh. 18.2 - Prob. 12SRCh. 18.2 - Prob. 13SRCh. 18.2 - Prob. 14SRCh. 18.2 - Prob. 15SRCh. 18.2 - Prob. 16SRCh. 18.2 - Prob. 17SRCh. 18 - Prob. 1CRQCh. 18 - Prob. 2CRQCh. 18 - Prob. 3CRQCh. 18 - Prob. 4CRQCh. 18 - Prob. 5CRQCh. 18 - Prob. 6CRQCh. 18 - Prob. 7CRQCh. 18 - Prob. 8CRQCh. 18 - Prob. 9CRQCh. 18 - Prob. 10CRQCh. 18 - Prob. 11CRQCh. 18 - Prob. 12CRQCh. 18 - Prob. 13CRQCh. 18 - Prob. 14CRQCh. 18 - Prob. 15CRQCh. 18 - Prob. 16CRQCh. 18 - Prob. 17CRQCh. 18 - Prob. 18CRQCh. 18 - Prob. 19CRQCh. 18 - Prob. 20CRQCh. 18 - Prob. 1CICh. 18 - Prob. 2CICh. 18 - Prob. 3CI
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