Select correct statements
(i) If 90% of Carnivores are remooved form forest, then forest area increases.
(ii) Generally 3 to 4 trophic layer are present in food chain due to loss of energy.
(iii) Food chain always possesses 2 to 8 trophic layers.
(iv) On removing 80% of tigers, member of herbivores will increase.
82. In which stage of the Decomposition, larger surface area for future decomposition is availabel?
In the given chart from carnivores to producer energy level gradually.
A. Decreases
B. Increases
C. Decreases & increases both are possible
D. None
Answer : Option B
which of the given option is shows more stable ecosystem ?
Producer primary Secondary Tertiary Total
consumer consumer consumer
A. 100 200 150 80 530
B. 900 500 225 40 1665
C. 200 100 125 75 500
D. All of the given.
Answer : Option B
85. which of the following is one of the causes of cancer ?
A. Obesity
B. Artheros cerosis
C. Inadcquale of O2 supply
D. Hypertension
Answer : Option C
which option is more suitable for x and y ?
X : Animal cells possesses mitochondria.
Y : IN animal cell energy is released when carbohydrates are completely broken .
A. Both are correct
B. Both are wrong
C. If x is correct then only y is correct
D. X : correct Y : wrong
Answer : Option C
(X) ???? energy (Y) from x energy is available to y and from y energy do not return to x then which
option correct ?
X Y
A. The earth The Sun
B. The Sun The earth
C. The Sun A blotic
D. X : correct Y : wrong
Answer : Option C
Select the correct option ?
89. Which of the following stage is possible by the activity of Hetorotrophs ?
90. The herbaceohs plant has 100 gram whight then what would be the average bio-mass of the same ?