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1. What is composed of several food chains in an ecosystem that intersect and depend on one another? a. niche b. feeding level C. energy pyramid • food web

1. What is composed of several food chains in an ecosystem that intersect and depend on one another? a. niche b. feeding level C. energy pyramid • food web

Human Anatomy & Physiology (11th Edition)
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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Name: Date: Food Webs 1. What is composed of several food chains in an ecosystem that intersect and depend on 2. In an ecosystem, how are food webs and food chains different? one another? a. Food webs begin with animals, and food chains begin with plants. b. Food webs rarely begin with plants, and food chains begin with animals. c. Food webs show the relationship between many different food chains in a. niche b. feeding level C. energy pyramid food web a single ecosystem. d. Food chains show the relationship between many different food webs in a single ecosystem. 3. Some scientists think that a food web with many connections is more stable than one with few connections. 4. Which organisms can be found at the first, or lowest, trophic level? a. herbivores a. True b. carnivores b. False C. heterotrophs d. autotrophs S. An organism which lives on or in another organism and derives its nutrition from that organism is a(n) 6. Any organism that must obtain its food from a source outside itself is a(n) a. autotroph. a. autotroph. b. heterotroph. • parasite d. saprophyte. b. heterotroph. C. parasite. d. saprophyte. Which type of organism breaks down the cells of dead organisms? 8. Which is a consumer? 2 cow a producer b. grass c. mushroom d. peach tree b. consumer C. decomposer d. omnivore
Transcribed Image Text:Name: Date: Food Webs 1. What is composed of several food chains in an ecosystem that intersect and depend on 2. In an ecosystem, how are food webs and food chains different? one another? a. Food webs begin with animals, and food chains begin with plants. b. Food webs rarely begin with plants, and food chains begin with animals. c. Food webs show the relationship between many different food chains in a. niche b. feeding level C. energy pyramid food web a single ecosystem. d. Food chains show the relationship between many different food webs in a single ecosystem. 3. Some scientists think that a food web with many connections is more stable than one with few connections. 4. Which organisms can be found at the first, or lowest, trophic level? a. herbivores a. True b. carnivores b. False C. heterotrophs d. autotrophs S. An organism which lives on or in another organism and derives its nutrition from that organism is a(n) 6. Any organism that must obtain its food from a source outside itself is a(n) a. autotroph. a. autotroph. b. heterotroph. • parasite d. saprophyte. b. heterotroph. C. parasite. d. saprophyte. Which type of organism breaks down the cells of dead organisms? 8. Which is a consumer? 2 cow a producer b. grass c. mushroom d. peach tree b. consumer C. decomposer d. omnivore
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