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For measuring the rate of transpiration of a twig using Ganong's potometer, learner A cuts the twig and fits it in the broad end of the water-filled potometer. Learner B cuts the twig under water and fits in the broad end of the potometer. Both the learners introduce an air bubble in the stem of the potometer, make the apparatus air-tight and start taking readings. What would they observe?
a. Both A and B observe air bubble moving towards the twig.
b. Both A and B observe no movement of air bubble.
c. A observes no movement and B observes movement of air bubble towards the twig.
d. A observes movement, while B observes no movement of air bubble towards the twig.
In earthworms, when the ovaries mature, the clitellum secretes a viscous substance in the form of a girdle. This girdle hardens in to a cocoon around the clitellum. The ova are dis
Q What are the most tremendous known representatives of the platyhelminth phylum? The most popular representatives of the platyhelminthes are worms that cause human diseases, l
Nervou s System It is controling system of body. Ectodermal in origin. This system is made up of nervous tissue. Nervous tissue is made up of neuron & neuroglial
definition ?
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The nucleus has an inner and an outer membrane and is perforated through 3000-4000 nuclear pores. Each pore having of a nuclear pore complex of more than 100 several proteins organ
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