71. Recently a village was badly affected by jaundice and Dengue,which of the following will decrease due to this ?
72. Which is related to the given statement ? In the begining of summer crow and koel lays eggs.
A. As the light intensity decerease reproductive organs become active
B. In some Birds increase or decrease in intensity of hight- makers reproductive organs active or inactive respecctivity
C. with increase in temperture, gonads become active
D. None of these
Answer : Option C
Population of CBM Village year wise ........
2000 -----> 1000
2005 -----> 400
2010 -----> 600
2012 -----> 800
what will be the appropri/ate graph for this ?
What is correct for the given statement ?
Statement X : Ascaris are permanent parasites
Statement Y : Ascaris lives inside the host’s body
A. Both X&Y are correct
B. Both x & Y are wrong
C. X is wrong Y is true
D. X is correct & Y is true
Answer : Option A
75. Depending on the study of bird population in diffrent areas of North Gujarat for last 10 years (2000 -2010) In which month population of bird is least ?
Which is the correct option for the given table ?write ‘T’ if the given ecample is correct and ‘F’ for
wrong example
Information Example
Breed only once Bamboo
Breeds many time Birds like pigeon, Mammals
Small sized but many offsprings Pray Birds
less in number but big size offsprings Only deep marine shishes
77. Biological control as pest control in agriculture is an example of .....
78. The turtle of Galapagus island and the goats living there both were eating tender grass, state the relationship.
A. Interspecific competition
B. Emigration
C. predation
D. None of these
Answer : Option A
79. carrying capicity of a population is determind by
A. Birth rate
B. Death rate
C. limiting resources
D. Reproductive ability ...
Answer : Option C
80. Biotic community means....
A. Group of Birds
B. Group of species
C. Group of interrelated population
D. Groups of interrelated ecosystem
Answer : Option C