Tag: evs

Questions Related to evs

As one moves up an ecological pyramid, in general ________________.

  1. The biomass increases

  2. Photosynthesis increases

  3. Energy levels decreases

  4. Productivity increases


Correct Option: A

Which one of the following is not used for construction of ecological pyramids?

  1. Number of individuals

  2. Rate of energy flow

  3. Fresh weight

  4. Dry weight


Correct Option: C
Explanation:

Fresh weight of organisms and their body parts comprises of water content along with the actual dry weight. The fresh weight is deviating w.r.t metabolism and availability in the same organism or different organisms taken under observation. This makes the standard comparison difficult. Hence, fresh weight is not used for the construction of the ecological pyramid.

So, the correct option is 'Fresh weight'.

The pyramid of energy in terrestrial ecosystem is

  1. Upright

  2. Inverted

  3. Spindle shaped

  4. Irregular


Correct Option: A

An example of one way ecological cycle is

  1. carbon dioxide cycle

  2. water cycle

  3. energy cycle

  4. oxygen cycle


Correct Option: C

Maintaining ecological balance in future will mainly depend on :

  1. nature's own process of changes and interaction

  2. adaptation of all living species to changes in climate

  3. man's caution and ability to allow nature's own balance to continue

  4. man's ability to maintain and develop species according to his needs.


Correct Option: C

The condition of deficiency and excess of essential nutrient is called as

  1. Malnutrition

  2. Constipation

  3. Dehydration

  4. None of the above


Correct Option: A
Explanation:

The condition of deficiency and excess of essential nutrient is called as malnutrition. In this, either one or more nutrients like calories, protein, carbohydrates, vitamins, minerals are in excess in diet or deficient in diet. It can be either undernutrition or overnutrition. 

Thus, the correct answer is 'Malnutrition.'

Supplement of essential nutrient in optimum amount is called as

  1. Malnutrition

  2. Nourishment

  3. Obesity

  4. None of the above


Correct Option: B
Explanation:

A- Malnutrition is a physical state of unbalanced nutrition. It can mean under-nutrition or over-nutrition. 

B- Nutrient is a source of nourishment, a component of food, for instance, protein, carbohydrate, fat, vitamin, mineral, fiber, and water.
C- Obesity is a condition that is associated with having an excess amount of body fat, defined by genetic and environmental factors that are difficult to control when dieting. 
So, the correct option is 'Nourishment'.

What does the doctor advise to the patients suffering from high blood cholesterol?

  1. Red mutton with fat layer

  2. Vegetable and margerin

  3. Vegetable oil such as ground-nut oil

  4. Pure deshi ghee or butter


Correct Option: B

Obesity is caused by

  1. Nourishment

  2. Malnutrition

  3. Hypersecretion of hormone

  4. None of the above


Correct Option: B
Explanation:

Malnutrition means any kind of bad nourishment. It doesn't necessarily mean that you aren't getting a proper diet, it can also mean excessive consumption of food. So eating junk food and a bad diet can cause obesity and that is known as malnutrition as well.

So, the correct option is 'Malnutrition'.

Which of the following disease caused by the excess supplement of nutrient?

  1. Kwasiworker

  2. Marasmus

  3. Kidney stone

  4. Dehydration


Correct Option: C
Explanation:
  • Kidney stones are the result of a buildup of dissolved minerals on the inner lining of the kidneys.
  • They usually consist of calcium oxalate but may be composed of several other compounds. Kidney stones can grow in size while maintaining a sharp, crystalline structure.
  • The stones may be small and pass unnoticed through the urinary tract, but they can also cause extreme pain as they leave the body. Hence, the kidney stone is the disease caused by the excess supplement of nutrient.
So, the correct answer is 'kidney stone'.