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Pregunta 1 Informe
When a student suddenly runs into a snake on a pathway, which of these chemical messengers are released ?
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Pregunta 3 Informe
Which of the following agricultural activities has the least harmful effect on the environment ?
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Pregunta 4 Informe
Which of the following sequences best illustrates a food chain in an aquatic habitat ?
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Pregunta 7 Informe
Lianas is to tropical rain forest as an extensive root system is to ---------------- habitat
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Pregunta 8 Informe
Two identical twin boys had different finger print. This proves that
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Pregunta 10 Informe
Which structure of the mammalian ear when removed will affect the maintenance of balance?
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Pregunta 11 Informe
Which material is NOT necessary for the manufacture of plant food?
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Pregunta 13 Informe
Which of these allelic pairs represent homozygous dominant trait?
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Pregunta 15 Informe
The part of the fruit which serves a protective function is called
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Pregunta 17 Informe
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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Pregunta 18 Informe
Modern method of classification of living things is based on similarity of?
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Pregunta 19 Informe
Which ONE is not an adaptation for water conservation in plant found is arid region?
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Pregunta 21 Informe
Root pressure and the transpiration pull are biophysical processes which account for the?
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Pregunta 22 Informe
Which of these pairs best illustrates symbiotic association?
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Pregunta 23 Informe
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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Pregunta 24 Informe
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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Pregunta 25 Informe
The streaming movement of cytoplasm observed in a freshly cut leaf of a water plant is termed
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Pregunta 26 Informe
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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Pregunta 27 Informe
Which of the following statements is NOT true according to the first and second laws of thermodynamics ?
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Pregunta 29 Informe
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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Pregunta 30 Informe
Which of these is a liming factor with respect to human population size?
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Pregunta 31 Informe
Which of these statements is NOT an idea contained in Lamarck’s theory of evolution.?
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Pregunta 32 Informe
The release of sperms through the urethral opening into the vagina is called?
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Pregunta 33 Informe
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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Pregunta 34 Informe
What is the result of placing a red blood cell in a hypertonic solution ?
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Pregunta 35 Informe
Which of these is NOT a method of asexual reproduction?
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Pregunta 36 Informe
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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Pregunta 37 Informe
Which of the following agricultural practices will NOT promote soil conservation ?
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Pregunta 38 Informe
Which of the following is NOT a natural source of energy ?
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Pregunta 39 Informe
Which of these agencies do not have anything to do with conservation of natural resources?
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Pregunta 40 Informe
Which of these organisms is most likely to have the least number if found within the same habitat?
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Pregunta 41 Informe
The group of micro-organisms that plays a vital role in the baking industry is
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