Tag: habitat and adaptation

Quizzes (7) Questions (72)

Questions Related to habitat and adaptation

Multiple choice evs - i interdependence in our environment meaning of environment significance of biodiversity habitat and adaptation

Which one of the following is the region of cold temperature? 

  1. Mesosphere

  2. Thermosphere

  3. Ionosphere

  4. Exosphere
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation
A. Mesosphere is the layer just above the stratosphere and extends from 50-85 km. Temperature is about -90° C in this region.
B. Thermosphere is the layer above the mesosphere. Ultraviolet radiations can penetrate this layer and causes photodissociation of molecules. Temperature increases in this region.
C. Ionosphere is the region of upper atmosphere of Earth that extends from 60-1000 km. Ionization by solar radiation occurs in this region.
D. Exosphere is the outermost layer of Earth's which hardly contains air.
Hence,the region of cold temperature is Mesophere.
So, the correct answer is 'Mesophere'.
Multiple choice evs interdependence in our environment meaning of environment significance of biodiversity habitat and adaptation

Which of the following statements is correct?

  1. Two species may not live in the same habitat.

  2. The more dissimilar the niches of two species , the stronger is competition between them.

  3. No two species can occupy exactly the same niche in the same geographical area.

  4. All of these
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

According to the competitive exclusion principle, no two species can occupy exactly the same niche in exactly the same habitat at exactly the same time. Two species whose niches overlap may evolve by natural selection to have more distinct niches, resulting in resource partitioning.

So the correct answer is 'No two species can occupy exactly the same niche in the same geographical area.'

Multiple choice evs interdependence in our environment meaning of environment significance of biodiversity habitat and adaptation

All of the following components are present in the secretion of parotid and submaxillary glands, except

  1. Lysozyme

  2. Thicyanate ion

  3. Maltase

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

Inside a cell, numerous organelles function to remove wastes. The lysosome is the organelle involved in digestion and waste removal because they contain digestive enzymes which are not present in the secretion of the parotid.

So, the correct option is 'Lysosome'.

Multiple choice evs interdependence in our environment meaning of environment significance of biodiversity habitat and adaptation

Which of the following is a salt rich habitat?

  1. Saline soils

  2. Tidal marshes and mangroves

  3. Coastal dunes and saline soils

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

A salt-rich habitat is the type of habitat which has plenty of minerals and salts in it. Salt marshes are coastal wetlands that are flooded and drained by salt water brought in by the tides. Saline soils are the ones that have the input of salt water in it. Coastal dunes are immediate landward of the beach are commonly found large, linear accumulations of sand known as dunes. 

Therefore all of the above are rich in salts and are salt-rich habitats. 
So the correct answer is ' All of the above'. 

Multiple choice evs interdependence in our environment meaning of environment significance of biodiversity habitat and adaptation

Human habitations and installations occupy land area

  1. 36.6%

  2. 16.6%

  3. 2.6%

  4. 0.6%
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation
One-fourth of earth's area is land which is covered by forests, agricultural farms and the urban and rural habitats of man. Out of total land area on earth, 52% of land is covered by forests, 20 % is occupied by deserts, 11% is occupied by agricultural farms and 2.6% is occupied by human settlements.
So, the correct answer is '2.6%'.
Multiple choice evs interdependence in our environment meaning of environment significance of biodiversity habitat and adaptation

State whether the following statements are true or false.
Factors that oppose biotic potential characterize environmental resistance

  1. True

  2. False
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Environmental resistance factors are all the things that keep a population of organisms from endlessly increasing. They lower the chances for reproduction, affect the health of organisms, and raise the death rate in the population. Environmental resistance factors include factors that are biotic (living) and abiotic (non-living). Biotic factors are things like predation, parasitism, lack of food, competition with other organisms and disease. Abiotic factors include drought, fire, temperature, and even the wrong amount of sunshine. 

So the given statement is true.