Biology
Give the biological/technical terms for the following:
(i) A membrane which allows the passage of molecules selectively.
(ii) The suppressed allele of a gene.
(iii) Structure that carries visual stimuli from retina to the brain.
(iv) WBCs squeeze through the walls of the capillaries into the tissue.
(v) Protective coverings located round the human brain and spinal cord.
(vi) Eye lens losing flexibility resulting in a kind of long sightedness in elderly people.
(vii) Hormones which stimulate other endocrine glands to produce their specific hormones.
(viii) The phase in the menstrual cycle in which the remnant of follicle in the ovary turns to Corpus luteum.
(ix) Statistical study of human population.
(x) Artificially introducing weakened germs or germ substance into the body for developing resistance to a particular disease.
Roots Absorption
ICSE 2012
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Answer
(i) Selectively permeable membrane
(ii) Recessive character
(iii) Optic nerve
(iv) Diapedesis
(v) Meninges
(vi) Presbyopia
(vii) Tropic Hormones
(viii) Luteal phase
(ix) Demography
(x) Vaccination
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