Assuming community occupy by 4 species with number 10, 20, 10, 20. What is Shannon weaver index of that community?

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#Question id: 10854

#Section 1: Ecology

Which of the following is an example of a hemiparasite?

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#Question id: 12111

#Section 1: Ecology

Which of the following is a tertiary consumer?

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#Question id: 4601

#Section 2: Evolution

DDT was once considered a "silver bullet" that would permanently eradicate insect pests. Instead, DDT is largely useless against many insects. Which of these would have prevented this evolution of DDT resistance in insect pests?

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#Question id: 9150

#Section 2: Evolution

For mountain ranges that are subjected to prevailing winds, why is the climate drier on the leeward (downwind) side?

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#Question id: 11767

#Section 2: Evolution

If a population has a stable age distribution, which of the following statements is true?