Campbell Biology in Focus (2nd Edition)
2nd Edition
ISBN: 9780321962751
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Jane B. Reece
Publisher: PEARSON
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Textbook Question
Chapter 26, Problem 9TYU
FOCUS ON INTERACTIONS
Giant lycophyte trees of Earth’s early forests (see Figure 26.30) had microphylls, whereas ferns and seed plants have megaphylls. Write a short essay (100-150 words) describing how a forest of lycophyte trees may have differed from a forest of large ferns or seed plants. In your answer, consider how the type of forest in which they grew may have affected interactions among small plants growing beneath the tall ones.
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FLORES DIology Second Semester Review
7. Chi Square Analysis: wild dumpy male x ebony wild female
F1:
All wild wild
F2:
142 wild wild males
52 wild ebony males
46 dumpy wild males
17 dumpy ebony males
151 wild wild females
47 wild ebony females
51 dumpy wild females
8 dumpy ebony females
What pattern of inheritance is observed for body color?
Autosomal recessive
Autosomal dominant
Sex-linked recessive
Sex-linked dominant
What are the genotypes of the parents in the P generation?
a.
XBYdd x XbXbDD
b. Bbdd x bbDd
c. BBdd x bbDD
d. BBX Y x bbXDY
How many flies in the F2 generation would you expect to express the dumpy wild phenotype?
a.
289.125
b. 97
c. 96.375
d. 293
4. This question focuses on entrainment.
a. What is entrainment?
b. What environmental cues are involved in entrainment, and which one is most influential?
c. Why is entrainment necessary?
d. Assuming that a flash of darkness is an effective zeitgeber, what impact on circadian
rhythms would you expect to result from an event such as the 2024 solar eclipse (assume
it was viewed from Carbondale IL, where totality occurred at about 2 pm)? Explain your
reasoning. You may wish to consult this phase response diagram.
Phase Shift (Hours)
Delay Zone
Advance Zone
Dawn
Mid-day
Dusk
Night
Dawn
Time of Light Stimulus
e. Finally, give a real-world example of how knowledge of circadian rhythms and
entrainment has implications for human health and wellbeing or conservation biology.
This example could be from your reading or from things discussed in class.
Generate one question that requires a Punnet Squre to solve the question. Then show how you calculate the possibilities of genotype and phenotype
Chapter 26 Solutions
Campbell Biology in Focus (2nd Edition)
Ch. 26.1 - Why do researchers identify charophytes rather...Ch. 26.1 - Prob. 2CCCh. 26.1 - Prob. 3CCCh. 26.1 - WHAT IF? What would the human life cycle be like...Ch. 26.2 - Prob. 1CCCh. 26.2 - Describe the importance of mycorrhizae, both today...Ch. 26.2 - MAKE CONNECTIONS Review Figures 8 .3 and 8.5. If a...Ch. 26.3 - Prob. 1CCCh. 26.3 - Prob. 2CCCh. 26.3 - MAKE CONNECTIONS Monilophytes and seed plants both...
Ch. 26.4 - What features not present in seedless plants have...Ch. 26.4 - Explain why Darwin called the origin of...Ch. 26.4 - MAKE CONNECTIONS Suppose the Bennettitales and...Ch. 26.5 - Prob. 1CCCh. 26.5 - Prob. 2CCCh. 26.5 - MAKE CONNECTIONS Figure 1.9 illustrates the...Ch. 26.5 - Prob. 4CCCh. 26 - Prob. 1TYUCh. 26 - Which of the following characteristics of plants...Ch. 26 - Prob. 3TYUCh. 26 - Prob. 4TYUCh. 26 - Prob. 5TYUCh. 26 - DRAW IT Use the letters a-d to label where on the...Ch. 26 - SCIENTIFIC INQUIRY INTERPRET THE DATA The grass...Ch. 26 - FOCUS ON EVOLUTION The history of life has been...Ch. 26 - FOCUS ON INTERACTIONS Giant lycophyte trees of...Ch. 26 - SYNTHESIZE YOUR KNOWLEDGE These stomata are from...
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