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The water reached the upward parts of plants : Through phloem , Through xylem , Through cortex , Though epidermis
For the measurement of transpiration the instrument used is : Thermometer , Potometer , Volmeter , Ammeter
The amount of water in a blood in a blood is about : 90 % , 92 % , 95 % , 97 %
in amoeba ammonia diffuses out through : Mitochondria , Golgi Complex , Nucleus , Cell membrane
Supporting structure of vertebral column consists of bones : 33 , 32 , 31 , 30
The intestine of frog develops from : Ectoderm , Endoderm , Mesoderm , None of these
The gene determines maleness on chromosome is : SVY , STY , SRY , SPY
In a big population the kinds of variation are : 6 , 4 , 3, 2
Charles Dawin was inspired by the work of his Geologist friends : August Weismann, Lamarck , Charles Lyell , Aristotle
The non- living components of environment are called : Biotic factor , Abiotic factors , Factors , Biomass
Primary tropic level formed by : Consumers , Producers , Decomposers , None of these
Liver Fluke complete its life cycle in how many host ? 4 , 5, 3, 2
How many type of vascular tissue are found in plant : 2, 8, 6, 3
In closed circulatory system the heart pumps the blood into the : Capillaries , veins , Arteries , Tissues
In earthworm excretion is carried out by : Nephridia , Flame cell , Excetory pores , Cilia
Locomotion in Euglena takes place with the help of : Flame cell , Cilia , Psedopodia , Flageellum
How many types of neurons are : 2, 6, 3, 4
The simplest method of asexual reproduction is : Budding , Multiple fission , Binary fission , Regeneration
In budding the method in which bud is formed is : Mitosis , Meiosis , Fission , Binary fission
James Waston and Francis Crick gave the model of DNA in : 1950 , 1951 , 1952 , 1953
The human genome contains about how many nucleotide pairs of DNA : 1808 , 1809 , 1810 , 1829
How many steps nitrogen cycle has : 1, 2, 3, 4
Chemical used as insecticide : BOD , DDT , HCl , H2SO4