Magnolia and oaks occur in the following zone:? March 24, 2019 BILAL KHATTAK0 A.Tropical B.Sub-tropical C.AlpineD.Temperateundefined
When a plant first begins to wilts permanently in a pot, its 54.5 gms of soil has 4.5 gms of wter. The PWP of this soil is:? March 24, 2019 BILAL KHATTAK0 A.4.50% B.9% C.8.25%D.16.50%undefined
Sunken stomata are found in the leaves of:? March 21, 2019 BILAL KHATTAK0 A.Nelumbium B.Hydrilla C.MangoD.Neriumundefined
In submerged hydrophytas, functional stomata are found:? March 18, 2019 BILAL KHATTAK0 A.On upper surface of the leaf B.Lower surface of the leaf C.Both the surfaces of the leafD.Nowhere on the plantundefined
The ration of volume of pores in the soil to the total soil volume is referred to as:? March 17, 2019 BILAL KHATTAK0 A.Pore frequency ratio B.Pore density ration C.Pore abundance ratioD.Pore space ratioundefined
If less light falls on a pond surface:? March 17, 2019 BILAL KHATTAK0 A.The size of fishes becomes large B.The size of fish population becomes smaller C.The size of fish population is in no way connected with the amount of light falling on a pondD.Mutation will take place in fishesundefined
Commensalism is a relationship between two organism in which:? March 15, 2019 BILAL KHATTAK0 A.One is benefitted, other remains unaffected B.One is benefitted, other remains unaffected C.Both are benefittedD.Both are unaffectedundefined
Plants growing in extreme cold soil are:? March 14, 2019 BILAL KHATTAK0 A.Oxylophytes B.Halophytes C.PsychrophytesD.Psammophytesundefined
Which of the following horizons is generally referred to as the illuvial zone?? March 12, 2019 BILAL KHATTAK0 A.Horizon-B B.Horizon-A C.Horizon-OD.Horizon-Cundefined