Study Guide for Campbell Biology
11th Edition
ISBN: 9780134443775
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Jane B. Reece, Martha R. Taylor, Michael A. Pollock
Publisher: PEARSON
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Chapter 28, Problem 12TYK
Summary Introduction
Introduction: Protist is a microscopic organism that belongs to the kingdom “Protista”. These have been classified into various categories depending upon their mode of nutrition.
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Which of the following is not a way that protists contribute to the food web? a. They fix carbon into organic molecules. b. They occupy the apex producer niche. c. They enter symbiotic relationships with animals. d. They recycle nutrients back into the carbon and nitrogen cycles.
Which of the following is NOT one of the roles of algae in nature?
O a. Petroleum is the fossil remains of planktonic algae.
O b. Algae are the primary producers in the aquatic food chain.
O c. Planktonic algae produces carbon dioxide as by-product of their
photosynthesis.
O d. Unicellular algae are symbionts of Tridacna.
Which of the following organism classification is based on free energy sources?
A. lithotrophs
B. organotrophs
C. chemotrophs
D. autotrophs
A, C, D
A, B, C, D
A, B, C
B, C, D
Chapter 28 Solutions
Study Guide for Campbell Biology
Ch. 28 - The plastids of chlorarachniophytes are surrounded...Ch. 28 - Sleeping sickness is caused by the kinetoplastid...Ch. 28 - Sleeping sickness is caused by the kinetoplastid...Ch. 28 - Prob. 4IQCh. 28 - Prob. 5IQCh. 28 - Prob. 6IQCh. 28 - Fill in the names of the two major clades and the...Ch. 28 - Prob. 8IQCh. 28 - Evidence indicates that all plastids (except for...Ch. 28 - Prob. 1TYKM
Ch. 28 - Prob. 2TYKMCh. 28 - Prob. 3TYKMCh. 28 - Prob. 4TYKMCh. 28 - Prob. 5TYKMCh. 28 - Prob. 6TYKMCh. 28 - Prob. 7TYKMCh. 28 - ________ flagella with spiral or crystalline rod;...Ch. 28 - Mixotrophs a. have unicellular and multicellular...Ch. 28 - According to the theory of secondary...Ch. 28 - Prob. 3TYKCh. 28 - Prob. 4TYKCh. 28 - Prob. 5TYKCh. 28 - Genetic variation is generated in the ciliate...Ch. 28 - Prob. 7TYKCh. 28 - Prob. 8TYKCh. 28 - Prob. 9TYKCh. 28 - Prob. 10TYKCh. 28 - Which supergroup includes the land plants? a....Ch. 28 - Prob. 12TYKCh. 28 - Prob. 13TYKCh. 28 - Prob. 14TYK
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- Single-celled algae live in the tissues of coral animals. The algaeprovide food for the coral, while the coral provides a stable homefor the algae. a. parasitismb. commensalismc. mutualismarrow_forwardPlants 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_forward(d) One cup of the algae above stores 43 calories of energy. There happens to be 6,750,000 cups of algae available in the area that the seal lives in. Knowing that one cup equals 128 grams, and the seal must consume 7500 calories per day... ) Calculate how much energy would be transferred to the seal if all of the energy in the algae population available in that area made its way to the seal through the food web above. (ii) Assume the seal consumes its daily calories per day. Describe how many days the seal would be able to live off of the energy transferred to it by the algae.arrow_forward
- Which of the following statements DOES NOT describe nitrogen fixing bacteria? A. Can be found only as a symbiotes associated with the root nodules of legumes. B. Maybe be present in soil. C. Converts atmospheric nitrogen to organic nitrogen. D. Composed of many species of bacteria.arrow_forwardWhich of the following statements DOES NOT describe microbes in an aquatic system? A. Bacterial and archaeal species are equally represented in freshwater and marine. B. Contains a large number of viruses. C. Converts dissolved organic carbon to utilizable forms of higher trophic level organisms. D. Possess several anti-predation mechanisms.arrow_forwardBecause plants extract nutrients from soil and use sunlight as an energy source, they are considered to be a. autotrophs. c. heterotrophs. b. consumers. d. decomposers.arrow_forward
- Why are phytoplankton commonly referred to as primary producers? O A. They are decomposers that return nutrients to the ecosystem. B. They are autotrophs relied upon directly or indirectly by the rest of the marine biome. O C. They are heterotrophs that prey on parasites. D. They exist in forests where other produce grows. 5 of 10 Answered MacBook Air F4 @ $4 & 2 3 4 5 6 7 Q E R Y A S D F Garrow_forwardThe balance of the coral reef ecosystem is being affected by warming oceans, changing ocean currents, and what other external factor? A: The acidification of the oceans B: The light that enters the system C: Marine animals leaving the reef D: Not enough information is givenarrow_forwardWhat organisms are in symbiotic relationships with plants and assist in obtaining nitrogen? Select one or more: O a. Statoliths b. Mycorrhizal Fungi c. Plasmodesmata d. Nitrogen Fixing Bacteria e. Gut Microbiotaarrow_forward
- Which of the following is NOT a unicelled organism? a. amoeba b. bacteria c. paramecium d. fungiarrow_forward1. What threats do phytoplankton face? What kind of ripple effect would their decline have on other marine species? 2. Compare and contrast overfishing and illegal fishing. What are the causes of these destructive actions?arrow_forward______are members of the phytoplankton . a. Water molds c. Diatoms b. Giant kelps d. Cellular slime moldsarrow_forward
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