BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)
10th Edition
ISBN: 9781305967359
Author: STARR
Publisher: CENGAGE L
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Chapter 20, Problem 12SA
Summary Introduction
Introduction:
The slime molds resemble
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Chapter 20 Solutions
BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)
Ch. 20 - All protists _______. a. lack mitochondria c. live...Ch. 20 - Deposits of shells from ancient ________ have been...Ch. 20 - The presence of a contractile vacuole indicates...Ch. 20 - Prob. 4SACh. 20 - Prob. 5SACh. 20 - Prob. 6SACh. 20 - Prob. 7SACh. 20 - Some _______ are bioluminescent and other live...Ch. 20 - Prob. 9SACh. 20 - A high concentration of oil helps _______ stay...
Ch. 20 - Prob. 11SACh. 20 - Prob. 12SACh. 20 - Prob. 13SACh. 20 - Prob. 14SACh. 20 - Prob. 15SACh. 20 - Imagine you are in a developing country where...Ch. 20 - Which groups of protists are scientists most...Ch. 20 - Water in abandoned swimming pools often turns...Ch. 20 - Melvin Calvin and Andrew Benson determined the...Ch. 20 - The protist that causes malaria evolved from a...
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- Protists with the capabilities to absorb nutrients from dead organisms are called ______. a. photoautotrophs b. autotrophs c. saprobes d. heterotrophsarrow_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_forward______carry out oxygen-releasing photosynthesis. a. Spirochetes c. Cyanobacteria b. Chlamydias d. Proteobacteriaarrow_forward
- Bacteria are similar to archaea in that theya. arose through endosymbiosis.b. are multicellular.c. live in extreme environments.d. are prokaryotes.arrow_forwardAn amoeba is which type of microorganism? which is correct a,b,c,d a - a prokaryotic alga b - a eukaryotic fungus c - a eukaryotic protozoan d - a prokaryotic bacteriumarrow_forwardWhat kind of ailment can algal (algae) toxins cause? a. disease caused by a neurotoxin b. anthrax c. purple tide d. nonearrow_forward
- Plants cannot fix nitrogen, yet some plants do NOT need nitrogen from the soil. This is because a. of a symbiotic association with a bacterium that can fix nitrogen. b. these plants are the exceptions that can fix nitrogen. c. they have been infected by a parasitic virus that can fix nitrogen. d. they are able to obtain nitrogen from the air.arrow_forwardMitochondria most likely evolved from_______. a. a photosynthetic cyanobacterium b. cytoskeletal elements c. aerobic bacteria d. membrane proliferationarrow_forwardOrganism cannot exist without a host is?select the true option a. Facultative parasite b. Obligate parasite c. Facultative saprophyte d. None of themarrow_forward
- Which of the following statements regarding protozoa is false?a) Some protozoa lack mitochondria.b) Some protozoa contain chlorophyll.c) Some protozoa are parasitic.d) Malaria is caused by a protozoan.arrow_forwardWhich of these protists is believed to have evolved following a secondary endosymbiosis? a. green algae b. cyanobacteria c. red algae d. chlorarachniophytesarrow_forwardA group of environmentalists is studying the effects of recent commercial zoning to wildlife acreage on the biodiversity of a rural county. The group noted a steady decline in the population of animals, while bacteria and other protists remained constant. Which statement best discusses the reasons for the steady decline of animals as opposed to the protists? A. Bacterial growth is usually not affected by environmental changes because of asexual reproduction. B. The animals could not adapt to the new environment. C. Bacteria lived in areas that were not affected by the zoning D. The animals became susceptible to human and environmental harm.arrow_forward
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