Bio 121 Campbell Biology Truman College
17th Edition
ISBN: 9781323670637
Author: Urry, Cain
Publisher: PEARSON
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Chapter 30, Problem 7TYU
EVOLUTION CONNECTION The history of life has been punctuated by several mass extinctions. For example, the irnpact of a meteorite may have wlped out most of the dinosaurs and many forms of marine life at the end of the Cretaceous pcriod (see Concept 25.4). Fossils indicatc that plants were less severely affectcd by this mass extinction. What adaptations may have enabled plants to withstand this disaster bctter than animals?
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BIOMES & ADAPTIVE RADIATION
Adaptive Radiation
ven the type of biome these succulent plants are found in, identify 3 important stressors present in their environments.
Now, describe how these pressures likely influenced the diversification of these plant lineages. Use one of the plant families listed above (and your representative species) to discuss as an example. (A well-developed paragraph is expected.)
The extinct plant Rhynia is important because:
Select one:a. they are the only known lineage of land plant to lack a cuticleb. they are some of the earliest evidence of the evolution of lignified xylemc. they occured in huge numbers and formed the coal deposits human use todayd. it is the earliest known Hornwort fossile. it shows the earliest evidence of secondary thickening in land plants
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BIU
A
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 30 Solutions
Bio 121 Campbell Biology Truman College
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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- Suppose you wanted to make a science fiction film in which human time travelers went back to the carboniferous. What types of modern plants would you use and which would you avoid if you wanted to depict the carboniferous setting as accurately as possible?arrow_forwardEVOLUTION LINK Like stems in general, some vines are herbaceous and others are woody. Tropical rain forests have a greater diversity of vines than in any other environment on Earth, and most of these vines are woody. Develop a hypothesis to explain why natural selection has favored the evolution of more species of woody vines (as opposed to herbaceous vines) in tropical rain forests.arrow_forwardDuring the jumps in the history of plants: The use of flowers, pollinators, and fruit for reproduction. Period, plants undergo one of the most significant evolutionary Cretaceous Jurassic Triassic Devonianarrow_forward
- What evidence do paleobotanists look for that indicates the movement of plants from water to land? O sporopollenin to inhibit evaporation from leaves O loss of structures that produce spores O remnants of chloroplasts from photosynthesizing cells O waxy cuticle to decrease evaporation from leaves MacBook Pro G Search or type URL %23 % & 3 4 6. 7 W E R Y G C V * 00 B (O ト D.arrow_forwardSome ancestral plants had a difficult transition to land, as challenges to survive caused plant evolution to develop very specialized adaptations over an extended amount of time. These are some of the challenges that plants faced: A. Avoiding desiccation B. Supporting larger bodies (against gravity) C Internally transporting substances D. Keeping gametes wet E. Keeping embryos wet For each of the above challenges. provide a structure/adaptation that plants have developed which mitigates that specific challenge. Must describe a structure or trait for all!arrow_forwardCharophytes are the group of green algae whose ancestral lineage gave rise to land plants. Life on land comes with several challenges not required for life submerged in water. What are these challenges and how did land plants overcome them? 3 challenges that land plants overcame as they adapted to land at least 1 key adaptive characteristic that allowed them to overcome each challenge. Also, include which lineage of land plants first evolved each characteristic you state.arrow_forward
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- Generally, immature fruits are green in color, and they change tobright, attractive colors when they become ripe. What do you think isthe potential evolutionary advantage of fruits changing colorconcerning their potential for dispersal? Please answer concisely and straight to the point. Thank you.arrow_forwardSuppose an efficient conducting system evolved in a moss thatcould transport water and other materials as high as a tall tree.Which of the following statements about “trees” of such aspecies would not be true?(A) Spore dispersal distances would probably increase.(B) Females could produce only one archegonium.(C) Unless its body parts were strengthened, such a “tree”would probably flop over.(D) Individuals would probably compete more effectively foraccess to light.arrow_forwardPhylogenetic analyses of land plants and their close relatives determined that the land plants form a monophyletic group (pass one-snip-test). This suggests, Select one: O a. There was a single transition from aquatic to terrestrial habitats b. Flowering plants arose first O c. No changes have occurred in lands plants since they transition to a terrestrial habitat O d. Wind-pollinated plants arose first e. There were many transitions from aquatic to terrestrial habitatsarrow_forward
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