Animals permanently living in caves do not have
nose
eyes
legs
stomach
Interaction between cow and lion is called
intraspecific
interspecific
intergeneric
all of the above
Hibernation is seen in
Lion
Tiger
Hedgehog
Elephant
The relationship between the animal which hunts or kills and the animal which is killed is called
symbiosis
parasitism
prey- predator
Trimethyl lead is formed by burning
wood
kerosene
petrol
coal
Temperature in abyssal zone is
2oC
4oC
1oC
5oC
Which one of the following is a physical component in a terrestrial ecosystem?
Type of soil
Types of salts in soil
Total salt content of soil
Total content of organic matter in soil
Majority of the salts in freshwater are
chlorides
carbonates of sodium, potassium etc
both a and b
none of these
Protozoans, rotifers, larvae of insects, crustaceae and moluscs are
phytoplankton
zooplankton
nekton
benthos
Animals like fishes, amphibians and reptiles are
Homoeothemic
Poikilothermic
Exothermic
Endothermic
