CAMPBELL BIOLOGY VOL. 1 W/ACCESS
11th Edition
ISBN: 9781323744130
Author: Reece
Publisher: PEARSON C
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Chapter 30.2, Problem 3CC
Summary Introduction
To draw: A phylogenetic tree of seed plants depicting the relationship between Elkinsia, gymnosperms, and the
Concept introduction: The first evidence of seed plant comes from 360 million-year-old fossils of plants in the genus Elkinsia. Elkinsia is a group of extinct gymnosperms. It lived 55 million years before the first fossil was classified as gymnosperms.
The early seed plants became extinct, and there is no information about the lineage that gave rise to the gymnosperms. The early gymnosperms lived in the Carboniferous Period. In the Permian period, the gymnosperms replaced the lycophytes and ferns. In the late Mesozoic era, the angiosperms started to replace the gymnosperms.
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Explain why Darwin called the origin of angiosperms an “abominablemystery,” and describe what has been learned from fossil evidenceand phylogenetic analyses.
Describe what the early angiosperm may have been like with regard to flowers, body, ecołogy, wood and pollen. For each of the characters, what living angiosperms still have those characters? In what ways have those changed in certain lines of evolution?
Working in the field, you discover a fossil of a previously undescribed plant species.The specimen is small and may not be complete; the parts you have do not include floral organs. what sort of observation(evidence) would you nrrd in order to classify the fossilas a vasucular plant with reasonable accuracy?What evidence would you need to distinguis between an angiosperm and gymnosperm?
Answer should be a maximum of 170 words
Chapter 30 Solutions
CAMPBELL BIOLOGY VOL. 1 W/ACCESS
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
- EVOLUTION 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_forwardTest Your Understanding Evaluate and Synthesize 18. EVOLUTION LINK Where would you place the progymnosperms on Figure 28-2? Explain your reasoning. Figure 28-2 Gymnosperm and angiosperm evolution This cladogram shows a current hypothesis of phylogenetic relationships among living seed plants, based on structural evidence, molecular comparisons, and fossils. Relationships among extant gymnosperm clades and angiosperms remain controversial. The arrangement of the phyla shown here may change as future analyses help clarify relationships.arrow_forwardTest Your Understanding Know and Comprehend 2. Conifers, cycads. ginkgo, and gnetophytes are collectively called (a) club mosses (b) gymnosperms (c) angiosperms (d) eudicots (e) seedless vascular plantsarrow_forward
- Angiosperms are the most diverse group of plants in existence today. Which of the following plant structures do angiosperms possess that are not found in any earlier lineage of plant? A. Fruits B. Seeds C. Pollenarrow_forwardNow you will practice identifying the phylogenetic tree that corresponds to a given character table. The following table shows three key events in the evolution of plants: the development of vascular tissue, the development of flowers, and the development of seeds. Plant groups Vascular Tissue Flowers Seeds Gymnosperms 1 0 1 Mosses 0 0 0 Ferns 1 0 0 Angiosperms 1 1 1 Select the phylogenetic tree that correctly represents the data in the character table.arrow_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
- Diagram the relationship between the sporophyteand gametophyte generations in bryophytes, ferns,gymnosperms, and angiosperms. Show the relative sizesand physical interactions (if any) of the two generations.arrow_forwardApply your understanding of angiosperms to identify which innovations likely contributed to the tremendous success of angiosperms.a. wind pollinationb. coevolution of flowers and their pollinatorsc. cones that protect the seedd. dominant gametophyte generationarrow_forwardWhich evolved more recently, tracheids or vessel elements? Do nonangiosperms such as conifers and ferns have vessel elements? Do flowering plants (angiosperms) have tracheids? Vessel elements?arrow_forward
- Double fertilization evolved independently in gnetophytes and in flowering plants. Name two other features usually associated with angiosperms that evolved independently in gymnosperms.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_forwardWhich of the following statements characterize the megaphyll line of evolution? A) They differ from microphylls by developing a single, unbranched vein rather than a branched vascular system.B) They are believed to have evolved from branching telomeres that flattened and developed photosynthetic tissue between the branches.C) They developed into leaves that can also be called lycophyllsD) They developed into the large leaves of the angiospermsarrow_forward
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