Biodiversity and Conservation
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Questions and Answers

What would amaze and baffle an alien from a distant galaxy visiting Earth?

  • The enormous diversity of life (correct)
  • The scarcity of living organisms
  • The absence of different species
  • The lack of diverse ecosystems

What is the approximate number of species of beetles on Earth?

  • Nearly 20,000 species
  • 28,000 species
  • 3,00,000 species (correct)
  • 20,000 species

What are ecologists and evolutionary biologists trying to understand about the significance of diversity?

  • How to decrease diversity
  • Why there are so few species
  • The history of earth's biodiversity
  • The significance of such diversity (correct)

At which levels of biological organization does immense diversity exist in our biosphere?

<p>At all levels of biological organization (D)</p> Signup and view all the answers

How many species of ants are estimated to be present on Earth?

<p>20,000 species (A)</p> Signup and view all the answers

Why does the rich variety of living organisms on Earth never cease to astonish and fascinate humans?

<p>Because of the enormous diversity of life (B)</p> Signup and view all the answers

What term was popularized by the sociobiologist Edward Wilson to describe the combined diversity at all levels of biological organization?

<p>Biodiversity (B)</p> Signup and view all the answers

Which level of diversity refers to the variations in potency and concentration of active chemicals in a single species?

<p>Genetic diversity (D)</p> Signup and view all the answers

Which region is cited as having a greater amphibian species diversity than the Eastern Ghats?

<p>Western Ghats (B)</p> Signup and view all the answers

What term refers to the diverse ecosystems such as deserts, rain forests, mangroves, coral reefs, wetlands, estuaries, and alpine meadows in India?

<p>Ecological diversity (B)</p> Signup and view all the answers

According to the International Union for Conservation of Nature and Natural Resources (IUCN), how many plant and animal species have been described so far?

<p>Slightly more than 1.5 million (B)</p> Signup and view all the answers

Why is it not easy to answer how many species there are on Earth?

<p>Because estimates vary widely and many of them are only educated guesses (D)</p> Signup and view all the answers

Where are species inventories more complete according to the text?

<p>In temperate countries (A)</p> Signup and view all the answers

What do biologists use as a method to estimate the total number of species on Earth?

<p>Statistical comparison of temperate-tropical species richness of an exhaustively studied group, and extrapolation to other groups (C)</p> Signup and view all the answers

What is the range of extreme estimates for the total number of species on Earth according to the text?

<p>20 to 50 million (D)</p> Signup and view all the answers

Why are estimates about the total number of species on Earth considered educated guesses?

<p>Because they are based on statistical comparisons (D)</p> Signup and view all the answers

Why would an alien from a distant galaxy visiting Earth be amazed?

<p>The enormous diversity of life on Earth (C)</p> Signup and view all the answers

What is the approximate number of species of ants present on Earth?

<p>20,000 (C)</p> Signup and view all the answers

What is the estimated number of species of beetles on Earth?

<p>3,00,000 (A)</p> Signup and view all the answers

Where does immense diversity exist in our biosphere?

<p>At all levels of biological organization (D)</p> Signup and view all the answers

What do ecologists and evolutionary biologists seek to understand about the significance of diversity?

<p>Why there are so many species and how diversification came about (B)</p> Signup and view all the answers

What term did Edward Wilson popularize to describe the combined diversity at all levels of biological organization?

<p>Biodiversity (C)</p> Signup and view all the answers

What is the term popularized by the sociobiologist Edward Wilson to describe the combined diversity at all levels of biological organization?

<p>Biological diversity (A)</p> Signup and view all the answers

At which levels of biological organization does immense diversity exist in our biosphere?

<p>Genetic, species, and ecological levels (C)</p> Signup and view all the answers

What level of diversity refers to the variations in potency and concentration of active chemicals in a single species?

<p>Genetic diversity (B)</p> Signup and view all the answers

According to the International Union for Conservation of Nature and Natural Resources (IUCN), how many plant and animal species have been described so far?

<p>Slightly more than 1.5 million (C)</p> Signup and view all the answers

Where are species inventories more complete according to the text?

<p>Temperate countries (B)</p> Signup and view all the answers

Why are estimates about the total number of species on Earth considered educated guesses?

<p>Due to incomplete species inventories (B)</p> Signup and view all the answers

What do biologists use as a method to estimate the total number of species on Earth?

<p>Extrapolating from known temperate-tropical species richness ratio (A)</p> Signup and view all the answers

What is the range of extreme estimates for the total number of species on Earth according to the text?

<p>$20$ to $50$ million (A)</p> Signup and view all the answers

What term refers to the diverse ecosystems such as deserts, rain forests, mangroves, coral reefs, wetlands, estuaries, and alpine meadows in India?

<p>Ecological diversity (C)</p> Signup and view all the answers

What is the approximate number of species of beetles on Earth?

<p>500,000 (C)</p> Signup and view all the answers

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