Campbell Biology in Focus
3rd Edition
ISBN: 9780134710679
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Rebecca Orr
Publisher: PEARSON
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Chapter 26, Problem 8TYU
FOCUS ON EVOLUTION
The history of life has been punctuated by several mass extinctions. For example, the impact of a meteorite may have wiped out most of the dinosaurs and many forms of marine life at the end of the Cretaceous period (see Figure 23.12). Fossils indicate that plants were less severely affected by this mass extinction. What adaptations may have enabled plants to withstand this disaster better than animals?
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Name 4 different evolutionary adaptations that allowed plants to survive on land instead of in water. Explain the significance of each adaptation-how does it help terrestrial plants?
EVOLUTION CONNECTION The history of life has beenpunctuated by several mass extinctions. For example, theimpact of a meteorite may have wiped out most of thedinosaurs and many forms of marine life at the end of theCretaceous period (see Concept 25.4). Fossils indicate thatplants were less severely affected by this mass extinction.What adaptations may have enabled plants to withstandthis disaster better than animals?
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.)
Chapter 26 Solutions
Campbell Biology in Focus
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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- Some 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_forwardUnique characteristics of plants : Which of the following are unique characteristics of plants? (Check all that apply) are multicellular are prokaryotes are unicellular are eukaryotes store food as starch store food as glycogen V carry out photosynthesis carry out cellular respiration M have cell walls made up of cellulose have cell walls made up of chitin have multicellular embryos have unicellular embryos alternate between two generationsarrow_forwardTest Your Understanding Know and Comprehend 7. A simple pistil consists of a single (a) calyx (b) carpel (c) ovule (d) filament (e) petalarrow_forward
- Which of the following is not a characteristic of plants? (a) cuticle (b) unicellular gametangia (c) stomata (d) multicellular embryo (e) alternation of generationsarrow_forwardTest Your Understanding Know and Comprehend 11. This flowering plant may be the nearest living relative to the ancestor of all flowering plants, (a) Amborella (b) Archaeopteris (c) Gnetum (d) water lily (e) magnoliaarrow_forwardEvolutionary Developmentà VASCULAR TISSUE What is vascular tissue? Seedless Vascular Plants (vascular tissue, no seeds) How long ago do seedless vascular plants first appear in the fossil record? Name 2 types of seedless vascular plants that are extant: Evolutionary Developmentà SEEDS What is a seed? Seed Plants (vascular tissue, seeds) How long ago do seed plants first appear in the fossil record? There are 2 Types of Seed Plants: Gymnosperms Give 2 examples of modern plants that are gymnosperms: Angiosperms (flowering plants) Give 2 examples of modern plants that are angiosperms:arrow_forward
- Evolutionary biologists have coined the term exaptation to describe a common occurrence in the evolution of life. A plant organ originally has a particular function, however, fulfills a new one. Provide two examples of exaptation in plant organs and elaborate comprehensively.arrow_forwardLike many multicellular organisms, plants have organs that perform specific functionsWhich of the following correctly pairs a plant organ with its function? ANSWER CHOICES ARE IN THE PHOTO. thanksarrow_forwardlides chrome extension://bpmcpldpdmajfigpchkicefoigmkfalc/views/app.html ent.docx 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…arrow_forward
- The DNA diversity of maize is not the same as the DNA diversity of teosinte. Is maize DNA diversity higher or lower than teosinte? Explain two reasons for why this is the case.arrow_forwardWhat 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_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
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