30 solutions available
Question 1(ii)Which one of the following is a biodegradable waste?Metal cansE-wastePlasticFlowers
Question 1(vi)Haploid number of chromosomes are found in:NephronsNeuronsSkin cellsSperms
Question 1(viii)The statistical study of human population is called:MortalityDemographyNatalityEquality
Question 1(xi)The site of light reaction in the cells of a green leaf is:NucleusGrana of chloroplastCytoplasmStroma of chloroplast
Question 1(xii)The paper used to demonstrate unequal transpiration in a dicot leaf is:Filter paperLitmus paperStarch paperCobalt chloride paper
Question 2(ii)Arrange and rewrite the terms in each group in correct order to be in a logical sequence beginning with the term that is underlined:(a)...
Question 2(iii)Match the items given in Column I with most appropriate ones in Column II and rewrite the correct matching pairs:Column IColumn...
Question 2(iv)Choose the odd one out from the following terms and name the category to which the others belong:(a) Used bandages, Pesticides, Face...
Question 3(i)Write the overall chemical equation for photosynthesis.
Question 3(iii)Differentiate between Karyokinesis and Cytokinesis.
Question 3(iv)Excessive use of fertilizers in agricultural fields reduces the yield of crops. Justify the statement.
Question 3(v)Study the diagram given below and answer the questions that follow:(a) Name the phenomenon depicted by the shoot in the above...
Question 4(ii)What is Active transport?
Question 4(iv)State Mendel's 'Law of Segregation'.
Question 4(v)Draw a neat, labelled diagram of a human sperm.
Question 5(iii)Mention two factors responsible for population explosion in India.
Question 5(iv)Name any two resources which come under pressure due to rising population.
Question 5(v)The diagram given below depicts the climate change on planet Earth. Answer the following questions:(a) Name the climatic phenomenon for...
Question 6(i)Define the term Transpiration.
Question 6(v)Draw a neat, labelled diagram of a Malpighian Capsule.
Question 7(i)What is a Reflex action?
Question 7(ii)Renal cortex has a dotted appearance and Renal medulla has a striped appearance. Explain.
Question 7(iii)What are the two functions of cerebellum.
Question 7(iv)Distinguish between Semicircular canals and Utriculus based on their function.
Question 7(v)A potted plant with variegated leaves was kept in dark for 24 hours and then placed in bright sunlight. Answer the following...
Question 8(i)Define the term Mutation.
Question 8(ii)A pure breeding red flower variety of pea plant (RR) is crossed with a pure breeding white flower variety of pea plant (rr). Draw a...
Question 8(iii)Leaves of certain plants roll up on a hot sunny day. Explain by giving suitable reasons.
Question 8(iv)What is a semi permeable membrane? Name the semi permeable membrane present in a plant cell.
Question 8(v)The diagram below depicts the human heart in one of its phases.Answer the questions that follow:(a) Which part of the heart is in the...