Tag: zoology

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Questions Related to zoology

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

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

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

  1. As such

  2. Less than the present level

  3. Increase from present level

  4. Dependent upon oxygen amount of the environment
Reveal answer Fill a bubble to check yourself
B Correct answer
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. 

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

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

  1. I only

  2. II only

  3. III only

  4. I and II

  5. II and III
Reveal answer Fill a bubble to check yourself
E Correct answer
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.

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

There is no atmospheric reservoir in

  1. Carbon cycle

  2. Water cycle

  3. Phosphorus cycle

  4. Sulphur cycle
Reveal answer Fill a bubble to check yourself
C Correct answer
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. 

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

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

  1. Water

  2. Dust particles

  3. Gaseous phase

  4. All of the above
Reveal answer Fill a bubble to check yourself
C Correct answer
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.