What is true for the following statements ?
Statement X : Migration of birds is influenced by light.
Statement Y : Reproduction of birds is influenced by light.
Statement Z : In all birds gonads are activated due to increase in intensity
of light during summer.
X Y Z
A. True False False
B. False True False
C. True True True
D. True True False
Answer : Option A
What is true for the given statements ?
Statement X : Birds and Mammals obtain greater body size in cold region
than in warm regions.
Statement Y : Birds and Mammals are Homeothermic
(warm blooded)animals.
Statement Z : Reptiles are smaller in cold region.
X Y Z
A. True False True
B. True True False
C. True True True
D. False True True
Answer : Option D
“Spiny lizard” absorbs water from the atmosphere
which is appropriate similar functional option for the statement ?
A. Tongue of Human
B. Hygroscpic roots of orchid
C. Roots of plants
D. None of these
Answer : Option B
What is true for the following statements ?
Statement X : Marine fishes have chlorine secretory cells.
while riverine fishes have chlorine cells.
Statement Y : Compared to marine water, fluid present
in fish is hypotonic while reverine water
is hypertonic compared to fluid present
in fish.
X Y X Y
5. Which animal is capable of obtaining water by oxidation of lipid.
6. Which is the example of intraspecific competition for food ?
A. Barnacle on rocks of the submerged water
B. Two female dogs and two male dogs
C. Various types of lichens
D. Paramaecium caudatuns and P.aurelia in laboratory.
Answer : Option B
Name the animals with freshwater habit in which
(i) endosmosis is possible
(ii) Excess water in removed by green glands
(iii) Greenglands removes water in the from of urine
A. Fresh water fishes
B. ophiocephalus
C. Crustacean astucus
D. None of these
Answer : Option C
8. In snakes realised (actual) natality is less than potential natality; because.....
A. all the eggs are not incubated
B. enviornmental boomrang (resistance)
C. Though eggs are incubated they donot reach upto adult stage.
D. All of these.
Answer : Option D
9. Indentify me “ My functioning is like an orchid.
Crustacian Astacus = Green land
Marine turtle
what is ‘X’ accroding to the information given ?