Which 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 angiosperms

Which 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 angiosperms

Concepts of Biology

1st Edition

ISBN:9781938168116

Author:Samantha Fowler, Rebecca Roush, James Wise

Publisher:Samantha Fowler, Rebecca Roush, James Wise

Chapter14: Diversity Of Plants

Section: Chapter Questions

Problem 9RQ: Which of the following traits characterizes gymnosperms? a. The plants carry exposed seeds on...

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Which of the following statements best compares the two dominant lineages of modern angiosperms? -Monocots are monophyletic whereas eudicots have multiple origins. -Monocots have only one pistil per flower whereas eudicots have three. -Monocots have only one cotyledon whereas eudicots have two. -Monocots are lycophylls whereas eudicots are euphylls. -Monocots have only one stamen per flower whereas eudicots have six.
One of the major phylogenetic conclusions of this study is: choose one a. The Ginkgoales are the sister group to angiosperms among extant gymnosperms. b. There is no sister group to angiosperms among extant gymnosperms. c. The Cycads are the sister group to angiosperms among extant gymnosperms. d. The Gnetales are the sister group to angiosperms among extant gymnosperms. e. The Conifers are the sister group to angiosperms among extant gymnosperms.
What are the common features among the three orders under the paleodicots(Laurales, Magnoliales and Piperales)? Why are they presumed to be the first angiosperms?
What evolutionary advantages do seed provide over spores? What was early gymnosperm ecology like? What ecological role did gymnosperms perform as the dominant terrestrial plant type 250 million years ago? what were did angiosperms begin to replace gymnosperms as the new dominant plant type in terrestrial ecosystems
Are gymnosperms heterosporous or homosporous? Explain what this means. What are the evolutionary “advances” represented by the seed?
What characteristics of angiosperms have allowed this group ofplants to dominate Earth?
Which of the following traits characterizes gymnosperms? a. The plants carry exposed seeds on modified leaves. b. Reproductive structures are located in a flower. c. After fertilization, the ovary thickens and forms a fruit. d. The gametophyte is longest phase of the life cycle.
What are the two structures that allow angiosperms to be the dominant form of plant life in most terrestrial ecosystems?
Do mosses have an alternation of isomorphic or heteromorphic generations? That is, can you easily tell a moss gametophyte from a moss sporophyte? When we look at leafy green moss plants, what are we seeing—the gametophyte or the sporophyte? In a flowering plant species, would the equivalent stage be the plant or the pollen grains and megagametophytes?
Describe the orders ANGIOSPERMS-EUDICOTS : ERICALES, GENTIANALES, LAMIALES, SOLANALES, APIALES AND ASTERALES in terms of plant habit, reproductive type (monoecius/dioecius), leaf type, leaf shape, floral characteristics, fruit morphology, seed size/shape, and other distinct features.
a. How are the angiosperms classified according to the Angiosperm Phylogeny Group (APG)? b. What is the present understanding about the origin of flowering plants, and the classification of angiosperms into “monocots” and “dicots”, based on most recent evidences? c. The work of plant taxonomists of the 20th century who identified /established the different families of flowering plants based mainly on morphological and anatomical details is still valued and being used today, despite the general acceptance of the Angiosperm Phylogeny Group (APG) as a classification system for the flowering plants. Explain why.
What is megasporophyll of angiosperm called?