The heliophytes are characterised by:? April 16, 2019 BILAL KHATTAK0 A.Vertically oriented leaves B.Horizontally oriented leaves C.Dropping leavesD.Twisted leavesundefined
Plants growing in alpine zone are dwarf due to:? April 15, 2019 BILAL KHATTAK0 A.Low temperature B.High wind velocity C.High light intensityD.None of theseundefined
The migration of locuats corresponds to:? April 15, 2019 BILAL KHATTAK0 A.Periodic magration B.Long distance migration C.Short distance migrationD.None of theseundefined
Plants growing on externally cold soil are called:? April 14, 2019 BILAL KHATTAK0 A.Halophyte B.Oxylophyte C.PsychrophyteD.Psammophyteundefined
Plants growing near sea shore will usually have xerophytic characters, like thick leaves, because:? April 11, 2019 BILAL KHATTAK0 A.There is planty of water in the soil B.There is too high a concentration of salts for the plants to absorb sufficient water from the soil C.Light available to plant is not sufficientD.The soil is muddyundefined
The association of nodule bacteria with leguminous roots is known as:? April 10, 2019 BILAL KHATTAK0 A.Saprophytism B.Symbiosis C.EpiphytismD.Parasitismundefined
Mark the true xerophyte:? April 9, 2019 BILAL KHATTAK0 A.Capparis aphylla B.Solanum xanthocarpum C.Euphorbia milliD.All of theseundefined
Mark the hyperparasite:? April 7, 2019 BILAL KHATTAK0 A.Thesium B.Tape worm C.BacteriaD.Balanophoraundefined
The plants present on the sand and gravel:? April 5, 2019 BILAL KHATTAK0 A.Lithophytes B.Oxalophytes C.PhancrophytesD.Psammophytesundefined
Development of soil from the parent rock is termed as:? April 5, 2019 BILAL KHATTAK0 A.Edaphotropism B.Edaptic factor C.Pedogenesis ? weatheringD.Edaphic climaxundefined