30 solutions available
Question 1(ii)The antiseptic present in tears:IodineHydrogen peroxideLysozymeLysosome
Question 1(iii)Assertion (A) : The foetus respires but does not breathe.Reason (R): The maternal blood supplies oxygen to the foetus through...
Question 1(v)The two cerebral hemispheres are joined by a sheet of fibres called:PonsCorpus luteumHypothalamusCorpus callosum
Question 1(vii)Assertion (A): Rods and Cones are photoreceptors in the sclera of eyeball.Reason (R): Rods are sensitive to dim light.A is True and R...
Question 1(viii)Priya tried to match the hormones with their effect on the human body. She tabulated the pairs as follows:HormoneEffect on the...
Question 1(xii)Rahul inserted a hairpin into his right ear to remove ear wax. He felt a sudden sharp pain with loss of hearing. This was due...
Question 1(xiv)A biology teacher asked her students to give two examples of vestigial organs in the human body.Raj said: Wisdom teeth and PinnaSonu...
Question 2(ii)Given below is the transverse section of the spinal cord. Read the information below the diagram and fill in the blanks:The spinal cord...
Question 3(i)Explain the term — Active transport.
Question 3(iv)Write the overall chemical equation for Photosynthesis.
Question 4(i)Why is Adrenaline called ‘The Emergency Hormone"?
Question 4(iv)State two objectives of Swachh Bharat Abhiyan.
Question 4(v)Draw a neat, labelled diagram of a root hair.
Question 5(i)Mention one characteristic of roots for absorbing water from the soil.
Question 5(iii)State the difference between Micturition and Parturition.
Question 5(v)Study the picture given below and answer the questions:(a) How does water get polluted?(b) What is the effect of water pollution on...
Question 6(i)State Mendel’s Law of Segregation
Question 6(iii)Differentiate between the terms Phenotype and Genotype.
Question 6(iv)What is the significance of Testes being placed in Scrotal sacs?
Question 6(v)Draw a neat, labelled diagram of a human sperm.
Question 7(i)What is the scientific name of the pea plant that Mendel used for his experiments?
Question 7(ii)Mention the surgical methods of contraception in:(a) Men(b) Women
Question 7(iii)Name two harmful effects of noise pollution.
Question 7(iv)Which parts of a plant exhibit:(a) Negative Geotropism(b) Positive Hydrotropism
Question 7(v)Kathak is an Indian classical dance which involves a lot of spinning by the dancers. The learners of this dance experience dizziness in...
Question 8(i)How does Transpiration help in the uptake of water from the soil?
Question 8(ii)Given below are two statements which are incorrect. Rewrite the correct Statements:(a) Fresh water fish when placed in hypertonic salt...
Question 8(iii)During Mitosis what is the position of chromatids in:(a) Metaphase(b) Anaphase
Question 8(iv)Chris was watching the display of fireworks in the sky.(a) Trace the path of the light rays using the following terms:Fovea, Lens,...
Question 8(v)Draw a neat, labelled diagram of a Malpighian Capsule.