BIOLOGY:THE ESSENTIALS (LL) W/CONNECT
3rd Edition
ISBN: 9781260670929
Author: Hoefnagels
Publisher: MCG CUSTOM
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Chapter 15, Problem 4MCQ
Summary Introduction
Introduction:
Protists are the organisms which do not fit the description of animal, plants or
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Why is the classification of protists based on DNA sequences useful? *
a. Because only protists have DNA
b. Because it has confirmed the traditional categories for protists
c. Because it has revealed evolutionary relationships, even among organisms that look diffferent
d. All of the above are correct
This is a required question
(2) Why is a species with small population more likely than one with a large population to undergo an extinction? *
a. Because small population are exposed to greater environmental changes
b. Because genetic diversity is likely to be lower in a small population
c. Because the mutation rate is too low
d. Because they take too long to produce an offspring.
Which statement about protists is true?
a.
Protists have many different metabolic lifestyles.
b.
Almost all protists are parasitic.
c.
All protists use pseudopods or cilia to locomote.
d.
All marine protists rid themselves of excess water by means of contractile vacuoles.
e.
Protists are found only in aquatic habitats.
You have discovered a photosynthetic protist that lives in fairly deep water (for example, 250 m deep). To which of the following groups should this organism be classified?
A. diatoms
B. green algae
C. red algae
D. cercozoan
Chapter 15 Solutions
BIOLOGY:THE ESSENTIALS (LL) W/CONNECT
Ch. 15.1 - Prob. 1MCCh. 15.1 - What we can learn from simulations of early Earth?Ch. 15.1 - Prob. 3MCCh. 15.1 - Prob. 4MCCh. 15.2 - Prob. 1MCCh. 15.2 - Without looking at figure 15.9, sketch the...Ch. 15.2 - Prob. 3MCCh. 15.2 - In what ways bacteria and archaea are essential to...Ch. 15.2 - Prob. 5MCCh. 15.3 - Prob. 1MC
Ch. 15.3 - List a logical sequence of evolutionary events...Ch. 15.4 - Prob. 1MCCh. 15.4 - Prob. 2MCCh. 15.4 - Prob. 3MCCh. 15.5 - Prob. 1MCCh. 15.5 - Prob. 2MCCh. 15.5 - Prob. 3MCCh. 15.5 - How do fungi benefit humans?Ch. 15.5 - Prob. 5MCCh. 15 - Prob. 1MCQCh. 15 - Prob. 2MCQCh. 15 - Prob. 3MCQCh. 15 - Prob. 4MCQCh. 15 - Prob. 5MCQCh. 15 - If you were developing a new broad-spectrum...Ch. 15 - Prob. 2WIOCh. 15 - Prob. 3WIOCh. 15 - Prob. 4WIOCh. 15 - Prob. 5WIOCh. 15 - Prob. 1SLCh. 15 - Review the Survey the Landscape figure in the...Ch. 15 - Prob. 2PIT
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- In the tree of life, which taxon does not belong to the Archaeplastida? A. green algae B. Charophyta C. flowering plants D. diatoms E. Red algaearrow_forwardWhich of these protists is hypothesized to be ancestral to animals? a. a green algal protist b. a choanoflagellate c. an amoeboid protistd. a slime moldarrow_forwardExplain how archae are more closely related to Eukarya than to bacteria even though Archae are related. Explain fully a. both are bacteria b. both have cells c. both have nucelus d. both are prokaryotesarrow_forward
- Which statement about protists is false? a. They can be photosynthetic and one of the foundations of the marine food web. b. Some are multicellular c. They are a monophyletic group. d. Some are parasitic.arrow_forwardWhich group is correctly paired with its description? A. diatoms-important consumers in aquatic communities B. diplomonads-protists with modified mitochondria C. apicomplexans -producers with intricate life cycles D. red algae-acquired plastids by secondary endosymbiosisarrow_forwardGive three examples of protists for which the classifications haverecently changed. In each case, what was the justification for the oldcategory, and what is the justification for the change?arrow_forward
- Which of the following taxon contains the other? a. Species b. Class c. Order d. Genusarrow_forwardThe endosymbiotic theory explains the:a. origin of the first prokaryotic cells.b. origins of mitochondria and chloroplasts in eukaryotes.c. evolutionary relationship between animals, plants, and fungi.d. method of reproduction in protists.arrow_forwardA group of students observe a sample of water under a microscope. The students see a single celled organism digesting another cell. The single celled organism contains a nucleus in other organelles. In which kingdom would this organism most likely be classified? A. Animalia B. Fungi C. Plantae D. Protistaarrow_forward
- Which of the following statements is the MOST compelling argument that fungi are more closely related to animals than plants? A. Plants have chloroplasts whereas fungi and animals cells do not. B. Plants fix carbon dioxide from the air; fungi and animals use pre-existing organic molecules. C. The DNA sequences of ribosomal RNA of fungi share more homology with ribosomal RNA from animals than plants. D. Both animal and fungal cells are eukaryotic.arrow_forwardWhich pair of species would be the most similar? a. Both are in the same kingdom but different phyla b. Both are in the same phylum but different classes O c. Both are in the same class but different orders d. Both are in the same order but in different genus O e. Both are in the same Domain but different Kingdomarrow_forwardIn this data table comparing DNA sequences among various protists, why do some cells have a dash rather than a value? A. Those cells would compare one species to itself. B. Those cells would duplicate comparisons shown elsewhere in the matrix. C. Those comparisons were not made by the researchers.arrow_forward
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