Biodiversity Overview Quiz
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Questions and Answers

What is the complete meaning of biodiversity?

Biodiversity refers to the variety of life.

Who first coined the term 'biodiversity' and in what year?

W.G. Rosen coined the term 'biodiversity' in 1986.

Name the three levels of biodiversity.

The three levels of biodiversity are genetic biodiversity, species-level biodiversity, and ecosystem biodiversity.

What does the prefix 'bio' in biodiversity signify?

<p>The prefix 'bio' signifies life.</p> Signup and view all the answers

Why is biodiversity significant?

<p>Biodiversity is significant because it supports ecosystem health and resilience.</p> Signup and view all the answers

What is biodiversity?

<p>Biodiversity is the variability among all living organisms from all sources, including ecosystems.</p> Signup and view all the answers

Who is considered the father of biodiversity?

<p>Edward O. Wilson is considered the father of biodiversity.</p> Signup and view all the answers

What are some levels of biodiversity assessment?

<p>Species richness and variability of living organisms are levels of biodiversity assessment.</p> Signup and view all the answers

What role does no single species play in ecosystems?

<p>No one species survives alone; they are interconnected and rely on each other.</p> Signup and view all the answers

Who introduced the term biodiversity and in what year?

<p>W.G. Rosen introduced the term biodiversity in 1986.</p> Signup and view all the answers

What is genetic diversity?

<p>It refers to the variation of genes within a population or species.</p> Signup and view all the answers

How does genetic biodiversity contribute to agricultural productivity?

<p>It supports the development of diverse crops and adaptation to environmental changes.</p> Signup and view all the answers

Define species diversity.

<p>It refers to the different species within a region or community.</p> Signup and view all the answers

What is ecosystem diversity?

<p>It encompasses the variety of ecosystems in a given area.</p> Signup and view all the answers

Why is genetic diversity important for evolution?

<p>It aids in speciation and the adaptation of species to new environments.</p> Signup and view all the answers

What is biodiversity?

<p>Biodiversity is the variability among living organisms from all sources, including genetic, species, and ecosystem diversity.</p> Signup and view all the answers

How do humans impact biodiversity?

<p>Humans impact biodiversity by affecting the physical environment, which influences ecosystems and overall environmental health.</p> Signup and view all the answers

What is genetic diversity?

<p>Genetic diversity refers to the variations within a species.</p> Signup and view all the answers

What does species diversity measure?

<p>Species diversity measures the variety of species present within an area or ecosystem.</p> Signup and view all the answers

What is ecosystem diversity?

<p>Ecosystem diversity encompasses the variety of habitats, communities, and ecological processes within a region.</p> Signup and view all the answers

What kind of characteristics are mentioned in the notes regarding the instrument?

<p>Characteristics mentioned include 'density', 'frequency', 'shape', 'design,' and 'structure'.</p> Signup and view all the answers

What is suggested about the instrument's functionality based on the notes?

<p>The instrument likely produces, amplifies, or modifies sound waves.</p> Signup and view all the answers

Can the name of the instrument be identified from the notes?

<p>No, the name of the instrument is not explicitly mentioned in the notes.</p> Signup and view all the answers

What can be inferred about the instrument's category from the notes?

<p>The notes suggest it may belong to the family of musical instruments or acoustic devices.</p> Signup and view all the answers

How does the clarity of the text affect the understanding of the instrument's description?

<p>The text's unclear portions make it difficult to provide a precise summary of the instrument's features.</p> Signup and view all the answers

What primarily influences species richness in a region?

<p>Climate conditions play a significant role in determining species richness.</p> Signup and view all the answers

What is the role of bees in an ecosystem?

<p>Bees serve as primary pollinators in the ecosystem.</p> Signup and view all the answers

What does ecosystem diversity refer to?

<p>Ecosystem diversity refers to the variety of ecosystems present in a given area.</p> Signup and view all the answers

Name one type of ecosystem diversity.

<p>Alpha diversity is one type of ecosystem diversity.</p> Signup and view all the answers

List two examples of ecosystems found in California.

<p>Kelp forests and deserts are two examples of ecosystems found in California.</p> Signup and view all the answers

How does the destruction of one wildlife species affect ecological balance?

<p>It can disrupt food chains and lead to population imbalances in other species.</p> Signup and view all the answers

In what way do snakes contribute to population control in their ecosystems?

<p>They help control rat populations by preying on them.</p> Signup and view all the answers

Why is biodiversity considered important for agricultural breeding programs?

<p>It serves as a gene bank, providing genetic material for developing high-yield and disease-resistant plant varieties.</p> Signup and view all the answers

What are some examples of plants that hold aesthetic value in India?

<p>Examples include the peepal tree, Banyan tree, and tulsi.</p> Signup and view all the answers

What role do food chains and food webs play in maintaining biodiversity?

<p>They link organisms and facilitate energy exchange, supporting various species in the ecosystem.</p> Signup and view all the answers

List three useful products derived from wild plants.

<p>Timber, coffee, and paper.</p> Signup and view all the answers

What can be the consequence of increased rat populations due to the loss of snakes?

<p>It can lead to potential agricultural damage and imbalance in the ecosystem.</p> Signup and view all the answers

What role do decomposers play in the ecosystem?

<p>Decomposers like bacteria and fungi break down dead organic matter and release nutrients back into the ecosystem.</p> Signup and view all the answers

Name two animals that have religious significance mentioned in the content.

<p>The peacock and the lion.</p> Signup and view all the answers

What is one of the demerits of biodiversity mentioned?

<p>Biodiversity is continuously being lost over many years.</p> Signup and view all the answers

What does anthropogenic activity refer to?

<p>The influence of human beings on the environment.</p> Signup and view all the answers

Name two natural factors that can impact the environment.

<p>Drought and cyclone.</p> Signup and view all the answers

What are some man-made factors that contribute to environmental issues?

<p>Destruction of habitats and over-exploration of species.</p> Signup and view all the answers

How does climate change serve as a cause of environmental issues?

<p>It alters weather patterns and affects ecosystems and biodiversity.</p> Signup and view all the answers

What role do pesticides and insecticides play in environmental degradation?

<p>They contribute to soil, air, and water pollution.</p> Signup and view all the answers

What is one example of a plant used in medicine and its derived drug?

<p>Papaver Somniferum is used to derive Morphine.</p> Signup and view all the answers

Name a wild animal product that serves a commercial purpose.

<p>Timber is a product derived from wild animals and plants for commercial use.</p> Signup and view all the answers

How are drugs tested on wild animals before human application?

<p>Wild animals are used to research materials for drug testing before they are applied to humans.</p> Signup and view all the answers

What is the aesthetic importance of wild animals and plants?

<p>Wild animals and plants provide beauty, such as colorful butterflies and birds.</p> Signup and view all the answers

What does Quinine, derived from Chinchona, treat?

<p>Quinine is used for the treatment of malaria.</p> Signup and view all the answers

Study Notes

Biodiversity

  • Biodiversity refers to the variety of life on Earth, encompassing all living organisms from all sources, including terrestrial, marine, and other aquatic ecosystems.
  • The term "biodiversity" was coined by W.G. Rosen in 1986.
  • Edward O. Wilson is considered the "father" of biodiversity research.
  • Biodiversity encompasses three levels: genetic diversity, species diversity, and ecosystem diversity.

Genetic Diversity

  • Genetic diversity refers to variations within a species.
  • Unique genetic traits allow populations to adapt to changing environmental conditions.
  • Examples: different rice varieties, fungi, and wheat.

Species Diversity

  • Species diversity refers to the range of species within a region or community.
  • Species richness is greatly influenced by climate conditions, with diverse climates supporting larger species counts.

Ecosystem Diversity

  • Ecosystem diversity refers to the variety of habitats, communities, and ecological processes within a region.
  • Examples include temperate forests, deserts, lakes, and kelp forests.
  • There are three types of ecosystem diversity**: alpha diversity, beta diversity, and gamma diversity.

Significance of Biodiversity

  • Biodiversity is essential for a healthy ecosystem. All living organisms are interconnected through food chains and food webs, exchanging energy.
  • The destruction of one type of wildlife can upset the ecological balance.
  • Biodiversity provides a source of genetic material for breeding programs in agriculture.
  • Biodiversity has significant economic, aesthetic, and religious importance.

Importance of Plants

  • Plants are crucial for aesthetic and commercial value.
  • Many plants are worshipped in India, such as the peepal, banyan tree, and tulsi.
  • Plants provide useful products like timber, paper, coffee, and tea.

Importance of Wild Animals

  • Wild animals provide a source of food and research materials for drug development.
  • Examples include Papaver Somifera (morphine drugs), Quinine (malaria treatment), and Taxus brevifolia (anticancer drugs).

Biodiversity Loss

  • Biodiversity loss is a major environmental issue caused by habitat destruction, overexploitation, invasive species, pollution, climate change, and population growth.
  • These factors threaten the balance of ecosystems and the survival of many species.

Main Reasons for Environmental Issues

  • Anthropogenic activity: Human activities and their direct impact on the environment.
  • Natural interference: Natural events and processes that influence the environment.
  • Nature of factors: These include pollution, drought, cyclones, low population densities, infectious diseases, and the presence of invasive species.

Man-made Factors

  • Destruction of habitats: This leads to habitat loss and fragmentation, disrupting ecosystems and species populations.
  • Over-exploitation of species: Overfishing, poaching, and unsustainable harvesting threaten species survival.
  • Exotic species: Invasive species can disrupt native ecosystems and compete with native species for resources.
  • Other causes: Population change, climate change, pesticides, and insecticides contribute to biodiversity loss.

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Test your knowledge on the concept of biodiversity, including its levels such as genetic, species, and ecosystem diversity. Learn about key figures in the field and the importance of diversity in life forms. Perfect for students studying environmental science or ecology.

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