BIOLOGY:THE ESSENTIALS (LL) W/CONNECT
3rd Edition
ISBN: 9781260670929
Author: Hoefnagels
Publisher: MCG CUSTOM
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Chapter 14, Problem 2WIO
What type of reproductive barrier applies to each of these scenarios?
| a. | Humans introduced apple trees to North America in 1800s. Insects called hawthorn flies, which feed and mate on hawthorn plants, quickly discovered the new fruits. Some flies preferred the taste of apples to their native host plants. Because these flies mate where they eat, this difference in food preference quickly led to a reproductive barrier. |
| b | Water buffalo and cattle can mate with each other, but the embryos die early in development. |
| c. | Scientists try to mate two species of dragonfly that inhabit the same pond at the same time of day. However, females never allow males of the other species to mate with them. |
| d | One species of reed warbler is active in the upper parts of the tree canopy while another species of reed warbler is active in the lower canopy. Both species are active during the day. |
| e. | Scientists mate two parrots from different populations to see if |
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Students have asked these similar questions
A.
Water currents in the ocean are much stronger than any sperm. How do sperm and egg find each other?
B.
In humans there are no water currents and the volume of the female reproductive tract is relatively limited. Then, why does the male have so many sperm?
C.
Why do sea urchins have external fertilization?
D.
Then why don't the parents take care of the young?
E.
Because the urchin life involves two or more ecological niches, they are more susceptible to predation and exposure to environmental toxins. What environmental conditions, predators and toxins might they be exposed to at each stage?
In an experiment in which resource allocation was studied in ovariectomized and sham-operated brown anoles, results showed that -
A. Females which laid fewer eggs per clutch had lower rates of survival.
B. Allocation to reproduction enhanced the growth and survival of the brown anoles.
C. The females which laid eggs more eggs had higher survival rates.
D. The females which did not lay eggs showed higher growth and survival rates.
Which statement about an individual that is homozygous for an allele is FALSE?
Select one:
a. Its parents were necessarily homozygous for that allele.
b. Each of the gametes it produces will contain one copy of that allele.
c. It will pass that allele to its offspring.
d. It is true-breeding with respect to that allele.
e. Each of its cells possesses two copies of that allele.
Chapter 14 Solutions
BIOLOGY:THE ESSENTIALS (LL) W/CONNECT
Ch. 14.1 - How are macroevolution and microevolution related?Ch. 14.1 - Prob. 2MCCh. 14.1 - What are some of the challenges in defining...Ch. 14.2 - Prob. 1MCCh. 14.2 - Write a real or fictitious example other than...Ch. 14.3 - Prob. 1MCCh. 14.3 - Prob. 2MCCh. 14.3 - Prob. 3MCCh. 14.4 - Prob. 1MCCh. 14.4 - Prob. 2MC
Ch. 14.5 - Prob. 1MCCh. 14.5 - Prob. 2MCCh. 14.5 - Prob. 3MCCh. 14.6 - Describe the taxonomic hierarchy.Ch. 14.6 - What are the strengths of a cladistics approach...Ch. 14.6 - Distinguish between ancestral and derived...Ch. 14 - Macroevolution is distinct from microevolution in...Ch. 14 - The biological species concept defines species...Ch. 14 - A mule is the offspring of a male donkey and a...Ch. 14 - Prob. 4MCQCh. 14 - Prob. 5MCQCh. 14 - Prob. 6MCQCh. 14 - Prob. 7MCQCh. 14 - Prob. 8MCQCh. 14 - Prob. 9MCQCh. 14 - Prob. 10MCQCh. 14 - How has the meaning of the term species changed...Ch. 14 - What type of reproductive barrier applies to each...Ch. 14 - Prob. 3WIOCh. 14 - Polyploidy is a common mechanism of speciation in...Ch. 14 - How does natural selection predict a gradualistic...Ch. 14 - Prob. 6WIOCh. 14 - Examine the cladogram in figure 14.17 and answer...Ch. 14 - Prob. 8WIOCh. 14 - Prob. 9WIOCh. 14 - Prob. 1SLCh. 14 - Prob. 1PITCh. 14 - Prob. 2PITCh. 14 - Prob. 3PIT
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