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Question : Vegetative propagation is seen in which plants ? Flowering or non-flowering plant ? Artificial vegetative propagation is practised in which plants? Seed bearing or seedless plants ?

Question : "Vegetarian food habits can sustain a larger number of people." Justify the statement in terms of food chain.

Question : VCD means............

Question : Variations that confer an advantage to an individual organism only will survive in population. Justify.

Question : Variation is useful for survival of each species. Explain.

Question : Variation is useful for the survival of species.

Question : Valves prevent ____ flow of blood and are also present in _____

Question : Vaccine which provides immunisation against polio was developed by

Question : Vaccine is not available for

Question : Usually the seed part of the fruit will not be tasty (may tastebitter) why?

Question : Usually green plants are at first level in an ecosystem because...a.they are widely spread on this earth.b.they are fixed at one place in soil.c.they synthesise food with the help of sunlight.d.herbivores are more than carnivores

Question : Use of …………………… mirror would be best for in solar cooker.

Question : Use of disposable plastic plates should be prevented because... (Complete the sentence.)

Question : Urina formation takes place in kidneys .

Question : Ureoteclic animals are those that eliminate the nitrogenous wastes predominantly in the form of

Question : Urea is a nitrogenous excretary product which is formed in

Question : Uraemia is a condition developed when

Question :Uproot an onion plant and take a thin section of its root tip. Stain it and observe undermicroscope. Draw as you see and identify the stages of the cell division.

Question : Undigested food, Genital pore, Rectum, Anus.

Question : Under which conditions does the law of independent assortment hold good and why?

Question : Under unfavourable conditions, bacteria reproduce by

Question : Ultraviolet radiation from sunlight causes the reaction that produces

Question : Ultimately all cellular membranes come from

Question : UAA, UAG and UGA are

Question : Typical 'lub-dub' sounds heard in heartbeat are due to

Question : Typhoid fever is caused by

Question : Type 2 diabetes mellitus results due to insulin deficiency.

Question : Two pink coloured flowers on crossing resulted in 1 red, 2 pink and 1 white flower progenny. The nature of the cross will be

Question : Two-Kingdom classification was based on

Question : Two halves of pelvic girdle is joined by

Question : Two green plants are kept separately in oxygen-free containers, one in the dark and the other in continuous light. Which one will live longer? Give reasons.

Question : Two green plants are kept separately in oxygen free containser, one in the dark and the other in continuouslight. Whichone will livelonger and give appropriate reason for the same ?

Question : Two cars are parked in open parking area. One car is of black colour with black film on window glass. Other car is of white colour and without black film on window glass. You just open the door and sit for 1-2 minute in each car. Why is black car more hotter than a white car ?

Question : Two cars are parked in open parking area. One car is of black colour with black film on window glass. Other car is of white colour and without black film on window glass. You just open the door and sit for 1-2 minute in each car. Which car is more hot inside ?

Question : Two bacteria found to be very useful in genetic engineering experiments are

Question : "Two areas of study namely 'evolution and classification are interlinked." Justify this statement.

Question : Turgidity of the cells is maintained by

Question : Trypsinogen is an inactive enzyme of pancreatic juice. An enzyme, enterokinase, activates it. Which tissue/ cells secrete this enzyme? How is it activated?

Question : Trypsin enzyme in mammals is formed from the

Question : Trypanosomiasis is a disease transmitted by

Question : Trypanosoma is transmitted by

Question : Try to trace your family tree. Family tree with photo frames (3 generations).

Question : True xerophytes have

Question : Trophic levels are formed by

Question : Valves prevent flow of blood and are also present in _