Top 80+ Solved Organism and Population MCQ Questions Answer
Q. In birthrate and deathrate is equal, then what will be the Vital Index ?
a. = 1
b. = 100
c. >100
d. <100
Q. Which option is correct for the given statement . Statement X : Density dependent factors are intrinsic Reason R : They are generated in population only
a. Both statement are true
b. Both statement are false
c. X is true, y is false
d. X is false, Y is true
Q. The given graph shows seasonal changes in the population of Birds of Gujarat in the year 2002. In the given graph what is true for point X ?
a. Vital Index <100
b. Vital Index >100
c. Vital Index =100
d. None of these
Q. Producers --->Decomposers ---->’X’, then what will be ‘X’ ?
a. Nostoc
b. Fungi
c. Both of these
d. None of these
Q. In given chart,what is the problem seen in living organism staying in‘X’ denoted area ?
a. endosmosis
b. exosmsis
c. a & b both
d. geting water and maintaing it.
Q. What is correct for the given statement ?Statement P : Environmental study is linked with ecologyStatementQ : Ecology is included in environmental study.
a. Both statement are true
b. Both statement are wrong
c. P is right and Q is wrong
d. P is wrong and Q is right
Q. What is the vital Index, if Birht rate is 0 and Death rate = 5 ?
a. 0
b. 100
c. 1
d. None of these
Q. Which is appropriate for the following statement ?Statement X : Pacific salmon fish reproduces only once in its life time.Statement Y : In a reproductive season it lays 2,80,000,000 eggs. X Y
a. True True
b. False False
c. True False
d. False True
Q. Mycobiont Supplies X to phycobiont and phycobiont supplies Y to mycobiont, then what is true for X and Y ?
a. X : Mineral element ; Y : Habitat
b. X : organic nutrients ; Y : Inorganic Nutrient
c. X : Habitat Y : protection
d. X : Minerals Y : organic nutrients
Q. In a population of salmon fish, potential Natality is 10,000 while realised mortality is 200, then the Vitlal Index =
a. 50,
b. less then 50
c. mor then 50
d. None of these
Q. Which of the following is not possible in ecosystem where microflora is absent
a. Photosynthesi
b. Decomposition
c. Assimillation
d. None of these
Q. If marine fish is kept in fresh water, will it survive
a. Yes, If chlorine cells are placed in its kidney
b. Yes, If chlorine cells are placed in its green gland
c. No, Because it can not adapt
d. No, they can not survive but of yongones hatching out of their eggs can survive
Q. What is true for both the organism showing interspecific compitition ?
a. Both are benefited
b. more or less harmful effect to both
c. one is benefited where as other is at loss
d. None of these
Q. If at “t” time population density is N, then what is the equation for the population density at (t+1) time ?
a. N (t+1) = Nt - [CD+E] - [B+I)]
b. N (t+1) = Nt+B+I-D-E
c. N (t+1) = Nt+(B+I)-(D+ E)]
d. All of these