Interactions in the Environment

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Questions and Answers

What is an ecosystem?

  • A system of interacting physical factors and minerals
  • A system of non-living components only
  • A system of living organisms only
  • A system of interacting organisms along with physical surroundings (correct)

Which of the following is considered as a biotic component of an ecosystem?

  • Soil
  • Rainfall
  • Microorganisms (correct)
  • Temperature

How do living organisms interact in an ecosystem?

  • By absorbing minerals from the soil
  • Through physical factors like temperature and wind
  • By adjusting their growth according to the rainfall
  • By interacting with each other and being affected by the physical surroundings (correct)

What does the term 'environment' include?

<p>Physical surroundings and living organisms (A)</p> Signup and view all the answers

Why are global summits involving developed and developing countries held regularly?

<p>To discuss environmental issues and their impact on the ecosystem (A)</p> Signup and view all the answers

Which of the following is an abiotic component of an ecosystem?

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

What do all organisms such as plants, animals, and humans do in an ecosystem?

<p>They maintain a balance in nature by interacting with each other and physical surroundings (D)</p> Signup and view all the answers

What does an ecosystem consist of?

<p>Both living organisms and non-living constituents of the environment (D)</p> Signup and view all the answers

What does the term 'environment' refer to?

<p>Living organisms and their physical surroundings (B)</p> Signup and view all the answers

What is the term for organisms that can make organic compounds from inorganic substances using the radiant energy of the Sun?

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

Which organisms depend on the producers either directly or indirectly for their sustenance?

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

In an ecosystem, which organisms break down the dead remains and waste products of other organisms?

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

Which of the following is an example of a producer in an ecosystem?

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

What term is used for organisms that consume the food produced by the producers?

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

Which of the following is an example of a decomposer in an ecosystem?

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

What term is used for organisms that consume only plants in an ecosystem?

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

What term is used for organisms that consume both plants and animals in an ecosystem?

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

What term is used for organisms that live on or in a host organism and derive nutrients at the host's expense?

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

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Study Notes

Ecosystem Overview

  • An ecosystem is a community of living organisms interacting with their physical environment.
  • Components of an ecosystem include both biotic (living) and abiotic (non-living) elements.

Biotic and Abiotic Components

  • Biotic components consist of all living organisms such as plants, animals, fungi, and microorganisms.
  • Abiotic components include non-living factors like water, soil, sunlight, and climate.

Interactions Among Organisms

  • Living organisms interact in various ways, including competition, predation, symbiosis, and mutualism.
  • These interactions help maintain the balance and health of the ecosystem.

Definition of Environment

  • The term 'environment' encompasses all external factors affecting organisms, including social, economic, and physical conditions.
  • The environment refers to the surroundings that provide essential resources for survival.

Importance of Global Summits

  • Global summits are held regularly to address environmental issues, climate change, and sustainable development strategies.
  • They aim to facilitate cooperation between developed and developing nations for better resource management.

Producers, Consumers, and Decomposers

  • Producers are organisms, like plants, that convert inorganic compounds into organic materials using sunlight (photosynthesis).
  • Consumers rely on producers for energy; they can be classified into herbivores (plant eaters), carnivores (animal eaters), and omnivores (both).
  • Decomposers play a critical role by breaking down dead organic matter and recycling nutrients back into the ecosystem.

Types of Organisms

  • Primary producers create energy-rich organic compounds from inorganic substances.
  • Herbivores consume only plants, while omnivores consume both plants and animals.
  • Parasites live off hosts, deriving benefits while harming the host organism.

Examples of Components

  • An example of a producer is grass.
  • An example of a decomposer is fungi or certain bacteria.
  • Herbivores, such as rabbits, are primary consumers, while omnivores, like bears, consume a mixture of plants and animals.

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