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Question : List in tabular form three differences in the movement of leaves of a Touch-me-not plant (the plant of Mimosa family) when touched and movement of a tendril towards a support.

Question : List in tabular form three differences between nervous control and chemical control.

Question : List four points of significance of reproductive health in a society. Name any two areas related to reproductive health which have improved over the past 50 years in our country.

Question : List four plant hormones. Write one function of each.

Question : List four forms of energy that you use from morning, when you wake up, till you reach the school.

Question : List four categories of contraceptive methods. State in brief two advantages of adopting such preventive methods.

Question : List four advantages of vegetative propagation.

Question : List four advantages of water harvesting.

Question : List four advantages of ground water.

Question : List five things you have done over the last one week to - increase the pressure on our natural resources.

Question : List five things you have done over the last one week to - conserve our natural resources.

Question : List any two practices that can be followed to dispose off the waste produced in our homes .

Question : List any two modes of asexual reproduction in animals. Under which mode of reproduction is vegetative propagation placed and why? List two advantages of vegetative propagation.

Question : List any two common pubertal changes that appear in both boys and girls.

Question : List any two common pubertal changes that appear in human males.

Question : List any two cases of our failure of sustainable management of natural resources.

Question : List any three differences between pollination and fertilisation.

Question : List any three differences between pollination and fertilization.

Question : List any three activities based on 3R approach to conserve natural resources.

Question : List any four modes of asexual reproduction.

Question : List any four methods of contraceptions used by humans. How does their use have a direct effect on the health and prosperity of a family.

Question :List any four methods of contraception used by humans. How does their use have a direct effect on the health and prosperity of a family?

Question : List and explain in brief three methods of contraception. OR List three techniques that have been developed to prevent pregnancy. Which one of these techniques are not meant for males? How does the use of these techniques have a direct impact on the health and prosperity of a family?

Question : List and explain briefly any three methods of contraception.

Question : Liquidfood drinking is called

Question : Lion, Deer, Grass.

Question : Light sensitive structure of euglenoids is

Question : Lichens indicate pollution because,

Question : Lichens are important in the studies on atmo-spheric pollution because they

Question : Lichens are important in the studies on atmo- spheric pollution because they

Question : Lichen is a symbiotic association of

Question : LHis secretedby the posterior pituitary .

Question : LH is secreted by

Question : LH and FSH are called

Question : Leydig cells form the cells of female. Gonads located in the pelvic cavity.

Question : Lever mechanism for pollination is characteristic feature of

Question : Leukaemia is a cancer due to

Question : Less response of a drug to a specific dose with repeated use is called ___________.

Question : Leprosy is due to

Question : Length of pollen tube depends on the distance between

Question : Leishmania reproduce asexually by

Question : Leeches do not have

Question : Leeches do not have an elaborate secretion of digestive juices and enzymes - Why?

Question : Lecithin is an example of,

Question : Leaves of a healthy potted plant were coated with vaseline. Will this plant remain healthy for long time ? Give reasons .

Question : Leaves of a healthy potted plant were coated with vaseline to block the stomata. Will this plant remain healthy for long? State three reasons for your answer.

Question : Latin name of Mango is

Question : Lateral line system found in fishes has been lost in amphibia because of

Question : Lateral linc sensory organs are mainly charac teristic of

Question : Late blight of potatois caused by