Loose-leaf Version for What is Life? A Guide to Biology
3rd Edition
ISBN: 9781464172274
Author: Jay Phelan
Publisher: W.H. Freeman & Co
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Chapter 10, Problem 8MC
Summary Introduction
Introduction:
Phylogeny is theory of how organisms are related to one another, throughout evolution. In other words it is the history of evolution. Evolutionary trees are used in studying phylogeny.
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From the seed plant phylogeny, which of the following is true of the Gnetophyta?
a) They are a paraphyletic group
b) They are monophyletic with Pinophyta
c) They are the sister group to Ginkgophyta
d) They could have evolved before or after Cupressophyta split from Pinophyta
e) Their seeds are contained in ovaries
What key traits distinguish each group from the other listed in the comparison?
A) All land plants from green algae?
B) Pteridophyta (ferns) from Bryophyta (mosses)?
C) Angiosperms from ferns?
Briefly describe the phylogeny of each in regards to its classification within the four supergroups:
a) Amoeba
b) Paramecium
c) Euglena
Chapter 10 Solutions
Loose-leaf Version for What is Life? A Guide to Biology
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- Ferns, such as the one in the picture, can be found today. they are usually found growing in warming climates. However, fossils of ferns have been found in places with cold climates where it often snows today. What can we conclude about the place where the fossils of ferns have been found? A) ferns used to live in cold climates. B) these places once had a warmer climate. C) these places once had a colder climate D) someone tired to grow ferns in cold climatesarrow_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_forwardWhich phylogenetic tree below represents the evolutionary history of the fungi based on the most recent data? A) C) O Tree B O Tree A O Tree D O Tree C Amoebas Fungi Animals Algae Plants Animals Fungi Amoebas Algae Plants B) D) Algae Fungi Plants Amoebas Animals Plants Fungi Algae Animals Amoebasarrow_forward
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- Which statement is usually true about phylogenetic trees? a) nodes represent points when traits have evolved b) branch tips that are next to each other are more closely related c) the branching pattern describes the hypothesized evolutionary relationships between the taxa d) the order of the branch tips (left to right) indicates which taxa are more advanced evolutionarilyarrow_forwardWhat traits do bryophytes and tracheophytes have in common? Check all that you think apply.A) they both undergo alternation of generationsB) they both have chlorophylls a and b.C) they both have an asexual life cycle stage.D) they both have multicellular gametangiaE) they both have apical meristemsarrow_forwardWhich of the following statements is accurate? a) All plants have identical sporangia, all producing the same type of spores b) Plants have an embryo that is protected inside (and nourished by) the gametophyte c) Gametangia produce gametes by meiosis whereas sporangia produce spores by mitosis d) Gametangia always produce haploid gametes whereas sporangia produce diploid spores e) Gametangia are multicellular structures whereas sporangia are unicellular structuresarrow_forward
- Which of the following is a paraphyletic group? A) E,F,G B) C and D c)A,B,C,D D) E,F,G,H,I,J,K E) j and Karrow_forwardThe number of possible trees resulting from phylogenetic analysis grows exponentially with the number taxa, such that in a 22 taxon analysis there are more possible unrooted trees than there are stars in the universe. A) True B) False C) It depends on the inference method and optimality criteria used. D) Number of taxa and number of unrooted tree possibilities are unrelated in phylogenetic analysis.arrow_forwardIn embryophytes, especially spermatophya, what is the difference between a "sporocyte" (e.g., megasporocyte) and the actual spore (e.g., megaspore)? a) Meiosis: Megasporocyte is still diploid, megaspore haploid b) Mitosis, number of nuclei: Megaspore has eight cell nuclei, megasporocyte only one c) Cytokinesis: Megasporocyte has only one cell, Megaspore can have several (as endosporic gametophyte). d) None: the two terms are synonymous. e) Meiosis: Megaspore is still diploid, megasporocyte haploidarrow_forward
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Discovering the tree of life | California Academy of Sciences; Author: California Academy of Sciences;https://www.youtube.com/watch?v=AjvLQJ6PIiU;License: Standard Youtube License