Tag: zoology

Questions Related to zoology

Environment consists of

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

  1. land, air, water

  2. light, temperature and rainfall

  3. plants, animals and microbes

  4. All the above

Show answer
Correct Option: D
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'.

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

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

  1. Pedosphere

  2. Troposhere

  3. Atmosphere

  4. Stratosphere

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Correct Option: B

Which of the following gas is present at a very high concentration in our environment?

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

  1. $O _{2}$

  2. $CO _{2}$

  3. $H _{2}$

  4. $N _{2}$

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Correct Option: D

At any given time,  __________ of the earth is illuminated by the sun.

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

  1. One-fourth

  2. One-third

  3. One-half

  4. Two-thirds

Show answer
Correct Option: C

Which ecosystem is important in purifying air, recycling water and controling climate?

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

  1. Man subsidized solar power ecosystem

  2. Fuel power ecosystem

  3. Naturally subsidized solar powered ecosystem

  4. Unsubsidized natural solar powered ecosystem

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Correct Option: A

Edaphic factors are related to 

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

  1. Humidity

  2. Soil texture

  3. Rainfall

  4. Wind velocity

Show answer
Correct Option: B
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.

If there was no CO$ _2$ in the earth's atmosphere, the temperature of earth's surface would be 

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

  1. As such

  2. Less than the present level

  3. Increase from present level

  4. Dependent upon oxygen amount of the environment

Show answer
Correct Option: B
Explanation:

Carbon dioxide is a greenhouse gas. It has the ability to trap sunlight and thus causes the increase in the temperature of Earth surface. If the situation on the Earth was with a lesser amount of $CO _2$, the temperature would have been very little. More pollution will cause the release of more $CO _2$ to the atmosphere causing global warming. 

Due to the increased average global temperature on fish populations, the fish will show
I. Movement from saline to fresh waters
II. Movement to deeper waters
III. Movement to higher latitudes

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

  1. I only

  2. II only

  3. III only

  4. I and II

  5. II and III

Show answer
Correct Option: E
Explanation:

Limited or no sunlight in deeper waters keep the temperature lower in the regions making it suitable for fishes when surface water become warm due to increasing in average global temperature. Likewise, higher latitudes maintain lower temperatures due to the angle of irradiance. Salinity does not affect the temperature range of water bodies. Thus, the correct answer is E.

There is no atmospheric reservoir in

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

  1. Carbon cycle

  2. Water cycle

  3. Phosphorus cycle

  4. Sulphur cycle

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Correct Option: C
Explanation:

The abiotic components which are recycled without any involvement of the gaseous form are known as the sedimentary cycle. The element is present in the form of salts as rocks in the geosphere which is taken up by the plants and then transferred to the animals. The phosphate is generally transferred and used in the form of ATP by the living cells. There is no form of phosphorus present in the atmosphere.

Thus, the correct answer is option C. 

The phosphorus cycle differs from those of carbon and nitrogen as well as from those of sulphur, oxygen and hydrogen in that it lacks 

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

  1. Water

  2. Dust particles

  3. Gaseous phase

  4. All of the above

Show answer
Correct Option: C
Explanation:

The abiotic components which are recycled without any involvement of the gaseous form are known as the sedimentary cycle. The element is present in the form of salts as rocks in the geosphere which is taken up by the plants and then transferred to the animals. The phosphate is generally transferred and used in the form of ATP by the living cells. The remaining abiotic components including sulphur, carbon, oxygen and hydrogen. 

Thus, the correct answer is option C.