Tag: organisms and environment

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Questions Related to organisms and environment

Multiple choice zoology environmental factors soil-nature climate factors abiotic components organisms and environment

I. Temperature
II. Humidity
III. Vegetation 
The abiotic factors of ecosystem include

  1. I only

  2. II only

  3. III only

  4. I and II only

  5. I, II and III
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Biotic factors of an ecosystem include all plant and animal species present in there. The abiotic factors include a physical environment in which they can survive. It includes light, temperature, humidity and other climatic condition as well as physical factors like soil. Thus, the correct answer is D. 

Multiple choice zoology environmental factors soil-nature climate factors abiotic components organisms and environment

The part of the biosphere which contains soil is known as 

  1. Pedosphere

  2. Lithosphere

  3. Hygrosphere

  4. Toposphere
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation
  • Pedosphere is an outer layer of earth that contains soil.
  • Lithosphere includes the brittle upper portion of the mantle, crust and Mantles are made of rock or ices. 
  • Hydrosphere contains all the waters on the earth's surface, such as lakes and seas.
  • Troposphere is the lowest layer of the atmosphere, closest to the earth's surface. so option A is a correct answer.
Multiple choice zoology environmental factors soil-nature climate factors abiotic components organisms and environment

In a .......... ecosystem, the producers are mostly herbaceous or woody plants.

  1. Terrestrial

  2. Aquatic

  3. Desert

  4. None of these
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Herbaceous plants are plants with very flexible stems. Woody plants include trees and shrubs. These are the plants present in the terrestrial ecosystem. They convert solar energy into chemical energy through photosynthesis in which carbon dioxide and water are used in presence of sunlight to synthesize nutrients such carbohydrates in the form of glucose and release oxygen into the atmosphere. Since plants form the base of the terrestrial ecosystem they are the producers.

Multiple choice zoology environmental factors soil-nature climate factors abiotic components organisms and environment

Environment consists of

  1. land, air, water

  2. light, temperature and rainfall

  3. plants, animals and microbes

  4. All the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation
The environment consists of two major components:
  • Abiotic components: These are non-living components of the environment and consist of two things, materials and energy (that may be light or chemical energy). Materials include land, air, water, minerals, salts, atmospheric gases, rainfall, temperature etc.
  • Biotic components: These are living components of the environment and divided into autotrophic and heterotrophic components. An autotrophic component is the producers or green plants while heterotrophic component includes consumers (primary, secondary and tertiary consumers) and decomposers (microbes).
Hence, all the given options are correct.
So, the correct answer is 'All the above'.
Multiple choice zoology environmental factors soil-nature climate factors abiotic components organisms and environment

Which of the following components of biosphere makes an interface with the soil?

  1. Pedosphere

  2. Troposhere

  3. Atmosphere

  4. Stratosphere
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The pedosphere is the outermost layer of the Earth that is composed of soil and subject to soil formation processes, forming the direct interface between the biosphere, atmosphere, lithosphere, and hydrosphere.

Multiple choice zoology environmental factors soil-nature climate factors abiotic components organisms and environment

Edaphic factors are related to 

  1. Humidity

  2. Soil texture

  3. Rainfall

  4. Wind velocity
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation
  • Various environmental factors can be divided majorly into climatic factors, edaphic factors and biotic factors.
  • The factors which relate to structure and composition of soil are called edaphic factors. Soil composition, organic matter, soil water, soil air and soil organisms are examples of edaphic factors.
  • Humidity, rainfall and wind velocity are climatic factors.
  • Examples of biotic components include animals, plants, fungi, and bacteria.
  • So the correct option is B.