Biodiversity and Conservation
32 Questions
1 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to lesson

Podcast

Play an AI-generated podcast conversation about this lesson

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</p> Signup and view all the answers

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

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

    Where are species inventories more complete according to the text?

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

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

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

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

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

    Where does immense diversity exist in our biosphere?

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

    Where are species inventories more complete according to the text?

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

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

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

    More Like This

    Use Quizgecko on...
    Browser
    Open
    Browser
    Browser