In Bougainvillea thorns are the modification of Option 1 : Adventitious rootOption 2 : StemOption 3 : LeafOption 4 : Stipules

Which among the following are the smallest living cells, known without a definite cell wall, pathogenic to plants as well as animals and can survive without oxygen? Option 1 : PseudomonasOption 2 : MycoplasmaOption 3 : NostocOption 4 : Bacillus

Which one of the following statements is not valid for aerosols? Option 1 : They are harmful to human health.Option 2 : They have negative impact on agricultural landOption 3 : They alter rainfall and monsoon patterns.Option 4 : They cause increased agricultural productivity.

Flowers which have single ovule in the ovary and are packed into inflorescence are usually pollinated by Option 1 : WindOption 2 : BeeOption 3 : BatOption 4 : Water

The function of copper ions in copper releasing lUD’s is Option 1 : They make uterus unsuitable for implantationOption 2 : They inhibit gametogenesisOption 3 : They inhibit ovulationOption 4 : They suppress sperm motility and fertilizing capacity of sperms

Among the following characters, which one was not considered by Mendel in his experiments on pea? Option 1 : Seed - Green or yellowOption 2 : Trichomes - Glandular or non-glandularOption 3 : Stem - Tall or dwarfOption 4 : Pod - Inflated or constricted

Homozygous purelines in cattle can be obtained by Option 1 : Mating of individuals of different speciesOption 2 : Mating of unrelated individuals of same breedOption 3 : Mating of related individuals of same breedOption 4 : Mating of individuals of different breed

Which of the following organisms are known as chief producers in the oceans? Option 1 : DinoflagellatesOption 2 : EuglenoidsOption 3 : CyanobacteriaOption 4 : Diatoms

Which of the following animals does not undergo metamorphosis? Option 1 : TunicateOption 2 : MothOption 3 : EarthwormOption 4 : Starfish

Which of the following features is used to identify a male cockroach from a female cockroach? Option 1 : Presence of a boat shaped sternum on the 9th abdominal segment.Option 2 : Forewings with darker tegminaOption 3 : Presence of caudal stylesOption 4 : Presence of anal cerci