Keystone Species Study guides, Revision notes & Summaries

Animal Diversity, 8e (Hickman) Chapter 1 Science of Zoology and Evolution of Animal Diversity 1) A characteristic of science is that A) it is not explained by natural laws. B) its hypotheses are testable. C) its conclusions are final. D) it is not falsifiable. E) it seeks to define the vitalistic forces of life. Answer: B Section: 01.01 Topic: Principles of Science Learning Objective: 01.01 Explain that science consists in testing, possibly rejecting, and improving our simplest and be...

Test bank for Ecology: The Economy of Nature 9e 9th Edition by Rick Relyea. ISBN-13: 5542 Full Chapters test bank included Chapter 1 An Introduction to Ecology 1.1 Ecological Systems Exist in A Hierarchy of Organization Individuals Populations Communities Ecosystems The Landscape The Biosphere 1.2 Physical and Biological Principles Govern Ecological Systems Conservation of Matter and Energy Dynamic Steady States Evolution 1.3 Different Organisms Play Diverse Roles in Ecological...

Humans produce sweat as a cooling mechanism to maintain a stable internal temperature. Which of the following best explains how the properties of water contribute to this physiological process? - ANSWER The high heat of vaporization of water allows the body to remove excess heat through a phase change of water from liquid to gas A student placed a semipermeable membrane inside a U-shaped channel with two chambers, as shown. The membrane permits the movement of water but not salt. The...

_____ are keystone species in many new world tropical forests. correct answers Figs _____ (family) families of Marsupials occur(s) in Africa. correct answers 0 _____ (family) families of Marsupials occur(s) in Australia. correct answers 15 _____ (family) families of Marsupials occur(s) in South America. correct answers 3 _____ are a species that is causing widespread destruction of habitat in the Tundra. correct answers (not muskoxen) (not reindeer) _____ are the most arboreal Old...

intraspecific competition correct answer: competition among individuals of the same species EX: hummingbird feeder interspecific competition correct answer: competition between different species community correct answer: assemblage of species in the same place at the same time competition correct answer: - and - types: interference, exploitation, apparent consumer- resource correct answer: + and - when one species is another's resource plant-herbivore host-parasite preda...

Restoration of the Everglades ecosystem will depend mostly on ___. - Reducing phosphorus levels Because of the bushmeat industry various species of ___ are particularly in jeopardy. - Primates Sulfur dioxide is found in the __________ - atmosphere Denitrification occurs in the absence of __________. - Oxygen Asian swamp eels are good invaders in Florida as they can ________. - Survive in shallow water The two principal species of salt marsh plants n Florida are ___________ and ___________. ...

Elements that organisms require to grow and reproduce correct answer: Hydrogen, Carbon, Nitrogen, Oxygen, Phosphorus, and Sulfur Similarities in arm structures of animals result from what factors ... correct answer: Certain bones are similar because all of these animals are mammals with a shared common ancestor. These bones and limbs are actually very different with different uses. Shared features in many organisms results from ... correct answer: shared common descent and evoluti...

Apes Final11) In general, successfully introduced species experience ________. A) increased environmental resistance B) competitive success against native species C) increases in limiting factors D) increased competition from other organisms E) decreased biotic potential - correct answer B.) Competitive success against native species 12) Bullfrog tadpoles are often sold as fish bait, even in areas where they do not occur naturally. When people buy 10 of them and don't use them all, they...

Species evenness is an important measure of diversity in an ecosystem. T/F correct answer: true When a tapeworm steals nutrients from the gut of a mammalian host, that symbiosis is called: intraspecific competition. parasitism. commensalism. mutualism. predation. correct answer: parasitism Based upon the age structure diagram, you expect the American population to: grow because all of the age classes have roughly equal proportions of people. grow then shrink because many of th...

What is the relationship between energy incoming to the Earth from the sun and the size of a food web? A. Less incoming energy, more diverse food web B. No relationship C. More incoming energy, less diverse food web D. Greater energy, greater food web - Answer-D. Greater energy, greater food web What is the most important thing that allows ecosystems to function? A. Atmosphere B. Water C. Soil D. Energy - Answer-D. Energy An ecosystem is defined as... A. the sum of living organisms a...