NECO SSCE - Biology - 2000

Which of the following agricultural activities has the least harmful effect on the environment ?

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The group of micro-organisms that plays a vital role in the baking industry is

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Root pressure and the transpiration pull are biophysical processes which account for the?

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An example of a conditioned reflex is

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Which of these organisms is most likely to have the least number if found within the same habitat?

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An instrument of measuring wind speed is called

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The streaming movement of cytoplasm observed in a freshly cut leaf of a water plant is termed

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When a student suddenly runs into a snake on a pathway, which of these chemical messengers are released ?

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An essential with the dental formula I 0/3 : C 0/1 : P 3/3 : M 3/3 is most likely adapted for ___________ nutrition .

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The part of the fruit which serves a protective function is called

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Which of these traits shows discontinuous variation ?

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What is the result of placing a red blood cell in a hypertonic solution ?

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Modern method of classification of living things is based on similarity of?

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An essential element whose deficiency in plants will result in poor growth, particularly of the roots, and is essential for cell well formation is

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When both alleles in a heterozygous individual are fully expressed in the phenotype of the F, generation this phenomenon is described as

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Which of the following agricultural practices will NOT promote soil conservation ?

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Use the information to answer this question.

I. Smoking
II. Sun drying
III. Freezing
IV. Canning
V. Salting
VI. Pasteurization

A method of food preservation that works on the principle of dehydration is

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Which of these is a liming factor with respect to human population size?

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In a case of disputed paternity the most likely clue to resolving the problem is to match the ________________ of the baby with that of the father .

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Which one is NOT an excretory product of man?

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The release of sperms through the urethral opening into the vagina is called?

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Which of these agencies do not have anything to do with conservation of natural resources?

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The most likely mode of an organism that possesses attachment structure, thin outer surface layer and absence of an elaborate digestive tract is

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Which of these allelic pairs represent homozygous dominant trait?

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Lianas is to tropical rain forest as an extensive root system is to ---------------- habitat

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Which organisms are NOT autotrophic?

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The genetic composition of an organism is termed

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Which of the following is NOT a natural source of energy ?

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Which of the following statements is NOT true according to the first and second laws of thermodynamics ?

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The process which ensures that the chromosome number for each species of organism remains constant from generation to generation is called

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Which of these is NOT an excretory organ/organelle?

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Which of the following sequences best illustrates a food chain in an aquatic habitat ?

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Which ONE is not an adaptation for water conservation in plant found is arid region?

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Which statement about decomposers is NOT true?

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Which material is NOT necessary for the manufacture of plant food?

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A common characteristic of ALL living things is

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Which structure of the mammalian ear when removed will affect the maintenance of balance?

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An example of sex-linked trait is

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Which of these statements is NOT an idea contained in Lamarck’s theory of evolution.?

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Which of these pairs best illustrates symbiotic association?

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An organism existing at the colonial level of life is

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Which of these is NOT a method of asexual reproduction?

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Two identical twin boys had different finger print. This proves that

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