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Question : Doctor diagnosed Radha was suffering from HIV-AIDS. List any two methods by which she might have come in contact with the disease. Name the organ affected by this disease. Why antibiotics cannot be used for its treatment ? Justify your answer.

Question : Name the oldest method of crop improvement.

Question : Do you know of any activity which may be polluting this water source?

Question : Name the nucleic acids that are present in an animal cell.

Question : Name the oil seeds that provide us with necessary fats.

Question : Do all diseases spread to people coming in contact with a sick person ?

Question : Name the non-living component (organelle) in a plant cell.

Question :Do all Desi cows look alike?

Question : Name the most efficient converter of low fibre food stuff into highly nutritious animal protein food.

Question : Do all cells of our body look alike in terms of shape, size and structure? What similarities do they have ? Illustrate by drawing diagrams of various cells present in the human body

Question : Name the most important function of each of the following : (a) Ribosomes(b) Mitochondria

Question : DNA is found in

Question : Name the model which is described as "a number of protein icebergs floating in the sea of lipids" which explains structure and functions of a plasma membrane.

Question : Distinguish between the thallophytesand bryophytes

Question : Name the method commonly used for improving cattle breeds.

Question : Distinguish between the reptilia and mammalia

Question : Name the Meaning of the word Echinos

Question : Name the layer of cementing material which holds adjacent plant cells. Where is it lacking ?

Question : Distinguish between the platyhelminthes and nematods

Question : Distinguish between the plant kingdom and animal kingdom

Question : Name the intercellular connections between adjacent plant cells. What is their function ?

Question : Distinguish between the monocots and dicots

Question : Name the instruments which are used to study structures that cannot be seen with naked eye.

Question : Distinguish between the mollusca and echinodermata

Question : Name the four important things needed by plants for photosynthesis.

Question : Distinguish between the Invertebrates and vertebrates

Question : Name the following : a) Tissue that forms the inner lining of our mouth. b) Tissue that connects muscle to bone in humans. c) Tissue that transports food in plants d) Tissue that stores fat in our body. e) Connective tissue with a fluid matrix. f) Tissue present in the brain.

Question : Name the first phase in cellular respiration.

Question : Distinguish between the bryophytesand pteridophytes

Question : Name the excretory organ of annelids.

Question : Distinguish between the following : (a) Cartilage and bone one the basis of matrix. (b) Blood and lymph on the basis of compoenents. (c) Simple tissues and complex tissues on the basis of constitution of cells.

Question : Name the elements present in phloem.

Question : Distinguish between the cartilaginous fishand bony fish

Question : Name the diseases of cows against which vaccination is available.

Question : Distinguish between the cryptogams and phanerogams

Question : Name theDisease caused by filarial worm

Question : Distinguish between the algae and fungi

Question : Name the Different forms of living organisms found in particular region

Question : Name the crops which can be grown in combination with fish culture.

Question : Distinguish between Nonchordata and Chordata.

Question : Name the common physical processes involved in the transport of materials across the cell membrane.

Question : Disscuss in your class room about the importance of crop insurance to farmers.

Question : Name the Cold-blooded animals that breathe through lungs only and lay eggs.

Question : Name the chief constituents of primary cell wall and secondary cell wall in a plant cell.

Question : Diseases caused by round worm

Question : Name the characters in which seed plants differ from pteridophytes.

Question : Disease that has been eradicated completely from India.

Question : Name the cell that surrounds the stoma.

Question : Disease transmitted by bacteria through sexual contact.

Question : Name the cell organelle which gives rise to the acrosome in an animal sperm.