A porcupine eats 3,000 J of plant material. 1,600 J is indigestible and is eliminated as feces. 1,300 J are used in cellular respiration. What is the approximate production efficiency of this animal?

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#Question id: 26891

#Unit 10. Ecological Principles

 A researcher working on island biogeography mapped how isolation-controlled immigration (I), and area-controlled extinction (E), will act on number of species present on the islands. He forgot to label the size of the islands (small or large) and the location of the islands (near or far) on the graph.

Using information from MacArthur and Wilson's equilibrium theory, select the option that correctly identifies A, B, C and D in the figure above. 

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#Question id: 26892

#Unit 10. Ecological Principles

If a species has more genetic variation, it can adapt better

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#Question id: 26893

#Unit 10. Ecological Principles

Greater amphibian species diversity seen in

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#Question id: 26894

#Unit 10. Ecological Principles

Number of species of vertebrate animal (Global) in decreasing order

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#Question id: 26895

#Unit 10. Ecological Principles

Which factor is important in maintaining some grassland and shrub climax communities?

TLS Online TPP Program

#Question id: 26896

#Unit 10. Ecological Principles

Higher annual precipitation (> 400cm) at which average temp 30 degreeC, which Types of Terrestrial biome is?