Biology: The Unity and Diversity of Life (MindTap Course List)
14th Edition
ISBN: 9781305073951
Author: Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr
Publisher: Cengage Learning
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Textbook Question
Chapter 19, Problem 9SQ
Bacteria that cause the disease typhus arc close relatives of bacteria that evolved into __________.
- a. protists
- b. protocells
- c. chioroplasts
- d. mitochondria
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It is thought that the mitochondria and chloroplasts of eukaryotic cells came froma. the development of the internal membrane system.b. protists.c. mutation.d. endosymbiosis of bacteria
The 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.
Protists with the capabilities to perform photosynthesis and to absorb nutrients from dead organisms are called ______________. a. photoautotrophs b. mixotrophs c. saprobes d. heterotrophs
Chapter 19 Solutions
Biology: The Unity and Diversity of Life (MindTap Course List)
Ch. 19 - According to the big bang theory, _______. a. the...Ch. 19 - An abundance of _______ in Earth's early...Ch. 19 - The Changing Earth Studies of ancient rocks and...Ch. 19 - Prob. 2DAACh. 19 - Prob. 3DAACh. 19 - Prob. 4DAACh. 19 - Stanley Millers experiment demonstrated...Ch. 19 - According to one hypothesis, negatively charged...Ch. 19 - The prevalence of _______ in living organisms is...Ch. 19 - Prob. 6SQ
Ch. 19 - Among prokaryotes, only the cyanobacteria _______....Ch. 19 - The evolution of _____ resulted in an increase in...Ch. 19 - Bacteria that cause the disease typhus arc close...Ch. 19 - Infoldings of the plasma membrane into the...Ch. 19 - Prob. 11SQCh. 19 - A stromatolite is a structure __________. a....Ch. 19 - Prob. 13SQCh. 19 - Evidence that Mars __________ suggests that it may...Ch. 19 - Chronologically arrange the evolutionary events,...Ch. 19 - Researchers looking for fossils or the earliest...Ch. 19 - The astronomer Carl Sagan once said, "We are made...Ch. 19 - How did the evolution of oxygen-releasing...
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- Mitochondria in protists originated froma. cyanobacteria.b. chloroplasts.c. anaerobic bacteria.d. aerobic bacteria.e. eukaryotic cells.arrow_forwardProtists do not includea. algae. c. multicellular organisms.b. amoebas. d. mushroomsarrow_forwardA principle of biology is that biology affects our society. Whyare the cysts of protists important to epidemiologists, thebiologists who study the spread of disease?arrow_forward
- Why don't we consider protists to all be in 1 kingdom together anymore? Group of answer choices A. because some of them are prokaryotic B. because they are not all closely related C. because they are all prokaryotic D. because some of them are multicellulararrow_forwardThe category of protozoa include the protists that * A. ingest their food. B. do not have chlorophyll. C. include all the three choices. D. are motile.arrow_forwardBacteria that cause the disease typhus are close relatives of bacteria that evolved into _____. a. Protists b. Protocells c. chloroplasts d. mitochondria Among prokaryotes, only the cyanobacteria ______. a. Live near hydrothermal vents b. Produce oxygen during photosynthesis c. Cannot tolerate oxygen d. Have a nucleus-like structurearrow_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_forwardGive an example of a protist that is:(a) a parasite of humans(b) very large and photosynthetic(c) a unicellular species with two flagella and photosynthetic(d) covered in ciliaarrow_forwardwhich of the statements is not true regarding protist? a. they may have cell walls b. They may be photosynthetic c. they may be prokaryotic d. they are usually aerobic though some are not e. some are unicellulararrow_forward
- The presence of a contractile vacuole indicates that a single-celled protist _______. a. is marine c. is photosynthetic b. lives in fresh water d. secretes a toxinarrow_forwardMitochondria most likely evolved from_______. a. a photosynthetic cyanobacterium b. cytoskeletal elements c. aerobic bacteria d. membrane proliferationarrow_forwardThe first forms of life on Earth were thought to be_____. a. single-celled plants b. prokaryotes c. insects d. large animals such as dinosaursarrow_forward
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