Life: The Science of Biology
11th Edition
ISBN: 9781319010164
Author: David E. Sadava, David M. Hillis, H. Craig Heller, Sally D. Hacker
Publisher: W. H. Freeman
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Chapter 26, Problem 4Q
Summary Introduction
To review:
Another example of convergent evolution in protists but outside alveolates.
Introduction:
Convergent evolution is defined as the process whereby unrelated or distantly related organisms evolve independently and possess similar traits as a result of adaptation influenced by certain environmental factors. Such organisms do not have any common ancestor but they may have some resembling characteristics features with respect to each other.
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Chapter 26 Solutions
Life: The Science of Biology
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- A parasitic protist has been isolated and is on a microscope slide. How could you determine whether it belongs to te Apicomplexans or Excavata supergroup? Look for spores which would indicate Excavata Look for flagella which would indicate Excavata There is no way to distinguish based on structural characteristics. Look for flagella which would indicate Apicomplexansarrow_forwardPseudopodia are commonly found in protistans. They are often used to; Choose both that apply; Feed Move Photosynthesize Store DNAarrow_forwardMembers of Phylum are some of the largest protists on Earth. Oomycota Bacillariophyta Phaeophyta Chrysophytaarrow_forward
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- Which of the following is not a characteristic of dinoflagellates? They are photosynthetic They are cilliated They live in symbiosis with coral They belong to the SAR supergrouparrow_forwardRhizopus (bread mold) reproduces both sexually and asexually. Rhizopus' sexual reproductive structure is called? Conidia The zygosporagium The ascusarrow_forwardPhylum Sarcomastigophor Labyrinthomorpha Apicomplexa Microspora Acetospora Myxozoa Ciliophora Habitat Symmetry Germ Layer Give two classes belonging in each phylum. Locomotion Digestive Respiratory Circulatory System Excretory Nervous Reproductive Fertilizatio narrow_forward
- A parasitic prot ist has been isolated and is on a microscope slide. How could you determine whether it belongs to te Apicomplexans or Excavata supergroup? Look for flagella which would indicate Excavata Look for flagella which would indicate Apicomplexans Look for spores which would indicate Excavata There is no way to distinguish based on structural characteristics.arrow_forward1. How is designated the ancestral protist lineage that gives origin to the metazoans? 2. Layout that protist lineage (inform the names of the structures) 3. Wich big philo of metazoa is most related to this protist lineage? 4. What is the main sinapomorphy of this meathozary group? 5. How can the relationship be morphologically proven to the ancestral protist lineage? 6. The feeding of the basal metazoan has characteristics considered plesiomorphic. Indicate the food habit and digestion process of the basal metazoan (I'm sorry, i don't speak english very well)arrow_forwardWhat material makes up a large proportion of a diatom’s cell wall? What material makes up a large proportion of a diatom’s cell wall? What are flagella? What purpose do flagella serve? What do euglenoids have instead of a cell wall? What characteristics do plantlike protists share with plants? How do euglenoids obtain food when there isn’t enough light to perform photosynthesis? How do dinoflagellates compare and contrast with euglenoids? How do algae get food to live?arrow_forward
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