Campbell Biology
12th Edition
ISBN: 9780135188743
Author: Urry
Publisher: PEARSON
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Chapter 52.1, Problem 3CC
WHAT IF? → Changes in Earth's climate at the end of the last ice age happened gradually, taking centuries to thousands of years. If the current global warming happens very quickly, as predicted, how may this rapid climate change affect the evolution of long-lived trees compared with that of annual plants, which have much shorter generation times?
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Which biological events took place during the Paleozoic Era and the Mesozoic Era?
O During the Paleozoic Era, three mass extinctions occurred which led to the colonization of land by plants, while during the Mesozoic Era,
gymnosperms became the dominant plant life.
O During the Mesozoic Era, five mass extinctions occurred which led to the colonization of land by plants, while during the Paleozoic Era,
angiosperms became the dominant plant life.
O During the Mesozoic Era, three mass extinctions occurred which led to the colonization of land by plants, while during the Paleozoic Era,
gymnosperms became the dominant plant life.
O During the Paleozoic Era, five mass extinctions occurred which led to the colonization of land by plants, while during the Mesozoic Era,
angiosperms became the dominant plant life.
Lignin and vascular tissue first evolved in relatives of club moss, and some extinct species stood 40 meters (130 feet) high. Explain how the evolution of vascular tissues and lignin would have allowed a dramatic increase in plant height. How might being tall give one plant species a competitive advantage over another?
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1. Of the following characteristics of plants, which are inherited (shared with green alg
are new (evolved within the plant lineage only)?
a) Multicellular sporangia
b) Presence of chloroplasts
c) Sessile (doesn't move)
d) Embryos supported by parents
e) Apical meristems
f) Cellulose cell walls
2. Designate each of the following as haploid or diploid.
a) Green part of a moss
b) Liverwort spem
c) Fern sporophy te
d) Cells making up the antherid ium of a fem gameto phyte
e) Plant spore
f) Plant embryo
3. Fill in the blank:
a) A plant spore grows into a
b) Eggs are produced inside
c) A plant zygote grows in to a
d) Sporangia produce
4. What group of plants (bryophy tes. lycophytes, pteridophytes/ferns, seed plants/spermatop
vascular plants/tracheophytes, plants/embryophy tes) is being described? Choose the group
best fits the description.
a) Can produce lignin-reinforced tissues (e.g., xylem, sclerench…
Chapter 52 Solutions
Campbell Biology
Ch. 52.1 - Explain how the sun's unequal heating of Earth's...Ch. 52.1 - What are some of the differences in microclimate...Ch. 52.1 - WHAT IF? Changes in Earth's climate at the end of...Ch. 52.1 - MAKE CONNECTIONS Focusing just on the effects of...Ch. 52.2 - Based on the climograph in Figure 52.10, what...Ch. 52.2 - Using Figure 52.12, identify the natural biome in...Ch. 52.2 - WHAT IF? If global warming increases average...Ch. 52.3 - Why are phytoplankton, and not benthic algae or...Ch. 52.3 - Prob. 2CCCh. 52.3 - MAKE CONNECTIONS As noted in Figure 52.15, the...
Ch. 52.4 - Give examples of human actions that could expand a...Ch. 52.4 - WHAT IF? You suspect that deer are restricting...Ch. 52.4 - MAKE CONNECTIONS Hawaiian silverswords under-went...Ch. 52.5 - Describe a scenario showing how ecological change...Ch. 52.5 - MAKE CONNECTIONS Commercial fisheries target...Ch. 52 - Suppose global air circulation suddenly reversed,...Ch. 52 - Prob. 52.2CRCh. 52 - Prob. 52.3CRCh. 52 - Interactions between organisms and the environment...Ch. 52 - Suppose humans introduced a species to a new...Ch. 52 - Level 1: Knowledge/Comprehension 1. Which of the...Ch. 52 - Which lake zone would be absent in a very shallow...Ch. 52 - Which of the following is characteristic of most...Ch. 52 - Prob. 4TYUCh. 52 - Prob. 5TYUCh. 52 - When climbing a mountain, we can observe...Ch. 52 - Prob. 7TYUCh. 52 - Prob. 8TYUCh. 52 - Prob. 9TYUCh. 52 - EVOLUTION CONNECTION Discuss how the distribution...Ch. 52 - SCIENTIFIC INQUIRY Jens Clausen and colleagues, at...Ch. 52 - WRITE ABOUT A THEME: INTERACTIONS Global warming...Ch. 52 - SYNTHESIZE YOUR KNOWLEDGE If you were to hike up...
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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
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- Ecologists have discovered that the seeds of many plants that grow in forests cannot germinate unless they have been exposed to fire. Design an experiment to test whether a particular plant has seeds with this requirement. Include your hypothesis statement groups, and an outline of your procedure.arrow_forward11 Scientists have studied the return of plant life on Mount St. Helens ever since the volcano erupted in 1980. Wildflowers began colonizing the area, followed by shrubs and small trees. Scientists predict that it will likely take hundreds of years before the area returns to a forest dominated by fir and hemlock trees. These changes are an example of (1) humans degrading an ecosystem by remov- ing wildflowers (2) the loss of genetic variation in a plant species (3) the growth of a forest through ecological succession (4) the biological evolution of wildflowers, shrubs, and treesarrow_forwardReview the life cycles of the three major plant groups (bryophyte or non-vascular plants, seedless vascular plants, and seed plants). Be able to identify the gametophyte and sporophyte generations in each plant group. Make one graph that shows patterns of changes in the following characteristics, as the different plant groups (bryophytes or non-vascular plants, seedless vascular plants, and seed plants) appeared or evolved on land through time. 1) size of the gametophyte generation 2) size of the sporophyte generation 3) biomass (amount of organic material) stored in the sporophyte 4) degree of dependence on water for fertilization Make sure the y- and x- axes of the graph, labels and title are included and correctly applied.arrow_forward
- WHAT IF? If the ability to disperse spermby wind evolved in a fern, how might its lifecycle be affected?arrow_forwardIf only one half of the flora in the world existed in 2110 (perhaps due to deforestation), what do you predict the atmospheric carbon level would be ? How would you change the simulation to reflect this? What is the relationship between increased carbon in the ocean and increased carbon in the soil? How else might carbon be transferred to soil? Using the data generated by the simulation, determine the mathematical relationship between the percentage increase in fossil fuel consumption and the increase in atmospheric carbon. Is the relationship linear?arrow_forwardSUBJECT: GENERAL BIOLOGY 1 / CAM and C4 Photosynthesis Plant adaptation is varied among all organisms present on Earth’s fauna. Also, we can’t deny the fact that as time goes by, the amount of carbon rises making it more complicated for the rest of organisms to adapt and survive. In relation to their specialized features, predict how C4 and CAM plants will each respond to a doubling of the concentration of CO2 in the atmosphere.arrow_forward
- Scientists have studied plant populations that have moved into areaswith low herbivory compared to the plant’s previous habitat. Aftermany generations in the new habitat, the plants produce fewerdefensive chemicals and grow larger than plants in the ancestralpopulation. How does natural selection explain these observations?(Hint: Producing defensive chemicals uses energy.)arrow_forwardWHAT IF? If a plant species has vertically orientedleaves, would you expect its mesophyll to be divided intospongy and palisade layers? Explain.arrow_forwardDo you agree that plants may be a renewable resource, however, plant diversity is not? Prove your point.arrow_forward
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