CAMPBELL BIOLOGY-MASTERINGBIOLOGY ACC.
11th Edition
ISBN: 9781323488638
Author: Pearson
Publisher: PEARSON
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Chapter 30, Problem 30.2CR
Although there are fewer Ihan 1,000 spedes of gymnosperms. the group is still very successful in terms of its evolutionary longevity, adaptations, and geographic dstribution. Explain.
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describe the full sexual reproduction of mangoes especially in these key steps
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Double fertilization evolved independently in gnetophytes and in flowering plants. Name two other features usually associated with angiosperms that evolved independently in gymnosperms.
Chapter 30 Solutions
CAMPBELL BIOLOGY-MASTERINGBIOLOGY ACC.
Ch. 30.1 - Contrast how sperm reach the eggs of seedless...Ch. 30.1 - What features not present in seedless plants have...Ch. 30.1 - WHAT IF? If a seed could not enter dormancy, how...Ch. 30.2 - Use examples from Figure 30.7 to describe how...Ch. 30.2 - Explain how the pine life cycle in Figure 30.4...Ch. 30.2 - Prob. 3CCCh. 30.3 - It is said that an oak is an acorns way of making...Ch. 30.3 - Compare and contrast a pine cone and a flower in...Ch. 30.3 - WHAT IF? Do speciation rates in closely related...Ch. 30.4 - Explain why plant diversity can be considered a...
Ch. 30.4 - Prob. 2CCCh. 30 - Describe how the parts of an ovule (integument....Ch. 30 - Although there are fewer Ihan 1,000 spedes of...Ch. 30 - Explain why Darwin called the origin of...Ch. 30 - Prob. 30.4CRCh. 30 - Where in an angiosperm would you find a...Ch. 30 - Prob. 2TYUCh. 30 - With respect to angiosperms, which of the...Ch. 30 - Which of thc following is not a characteristic...Ch. 30 - Gymnosperms and angiosperms liave tlie following...Ch. 30 - DRAW IT Use the letters a-d to label where on the...Ch. 30 - EVOLUTION CONNECTION The history of life has been...Ch. 30 - Prob. 8TYUCh. 30 - WRITE ABOUT A THEME: ORGANIZATION Cells arc the...Ch. 30 - Prob. 10TYU
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- why are paleodictos presumed to be primitive angospermsarrow_forwardSelf-fertilization, or selfing, seems to have obvious disadvantages as a reproductive “strategy” in nature, and ithas even been called an “evolutionary dead end.” So it issurprising that about 20% of angiosperm species primarily rely on selfing. Suggest a reason why selfing might beadvantageous and yet still be an evolutionary dead end.arrow_forwardList and briefly describe at least three adaptations that havecontributed to the evolutionary success of angiosperms.arrow_forward
- There are two alternative hypotheses about the life cycle of the early vascular plants, the transformation hypothesis and the interpolation hypothesis. If Rhynia and Sciadophyton are the two generations of one species, which hypothesis would be favored? Briefly describe the other hypothesis.arrow_forwardDraw a diagram of L.S. of an anatropous ovule of an Angiosperm & label the following parts :- (i) Nucellus (ii) Integument (iii) Antipodal cells (iv) Secondary Nucleus.arrow_forwardMost flowers contain both male and female reproductive structures, in contrast to the cones of gymnosperms, which are either male or female. Explain how bisexual flowers might be an advantageous evolutionaryadaptation to the flowering plants that possess them.arrow_forward
- Explain why Darwin called the origin of angiosperms an “abominablemystery,” and describe what has been learned from fossil evidenceand phylogenetic analyses.arrow_forwardDescribe the interrelationships among the different gymnosperm lineages, as inferred from the two cladograms. What are the common patterns you see in the two figures, and in what ways do they differ?arrow_forwardWhere on the tree you would expect to find male cones, and which structures are haploid and which are diploid. Compare and contrast the staminate cone of Pinus to the sorus of fernsarrow_forward
- How are the femalegametes of gymnospermsformed? What is therelationship between thisprocess and the concept ofalternation of generations?arrow_forwardFor those who aren't scientists, there is disappointment when it's learned that scientists don't have all the answers to our questions. (Personally, it took awhile for me to be comfortable with this, and now I love it!). After reading the links and article, what are at least five unanswered questions that pertain to angiosperm evolution and diversification.arrow_forwardMost extant species of gymnosperms are now considered as "living fossils", why is that so? Give some insights on why gymnosperms were not able to dominate land despite of having seeds.arrow_forward
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