6.Which of the following is a true statement? a. There are always more heterotrophs than autotrophs in an ecosystem b. Only 10% of the energy is transferred from one trophic level to the next -- because of this energy loss, there are always more autotrophs c. In numbers pyramids, there are more autotrophs but no in biomass pyramids d. The number of species increases as the trophic level increases answer explain

6.Which of the following is a true statement? a. There are always more heterotrophs than autotrophs in an ecosystem b. Only 10% of the energy is transferred from one trophic level to the next -- because of this energy loss, there are always more autotrophs c. In numbers pyramids, there are more autotrophs but no in biomass pyramids d. The number of species increases as the trophic level increases answer explain

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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1. On the savannah of African exist two animals, the African Wild Dogs (Lycaon pictus) and the Spotted Hyenas (Crocuta crocuta). Both of these animals occupy a very similar niche in their community – a social carnivore, which hunts in packs. However, when their niche does completely overlap the Hyena will win the fight. Use this information to answer the following questions. a) If these two animals were to occupy the same habitat, knowing what you know about these populations, what do you think the outcome of these two populations would be? b) The African Wild Dog hunts at twilight, while the Spotted Hyenas hunt at night. This separation of niches allows for what ecological process to happen? Why is it important that this process happens? c) The population of African Wild Dogs is much smaller, and very isolated from one another. If you were trying to prevent this animal from going extinct – what would you focus your resources on conservation wise? (There are a number of answers for…
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6. Define ecological niche and describe how it is related to resource partitioning. a. Can two species with identical niches permanently exist in the same community? Why?
4. Use the graph to the right to answer the following questions.
2. Simple food chains seldom exist in the ocean. The complex feeding relationships within marine ecosystems are better described as food webs. Whether considering a food chain or a marine food web, the lowest trophic level is occupied by_ a. autotrophs b. carnivores c. herbivores d. decomposers
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