JAMB UTME - Biology - 1984
Pergunta 1 Relatório
Which of the following sequences represents process of blood clothing? 1. Fibrins forms a network of threads 2. Red blood cells are caught and clot is formed 3. Fibrinogen in plasma changes into fibrin 4. Blood is exposed to air
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Pergunta 2 Relatório
Which of the following statement is NOT true of enzymes? They
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Pergunta 3 Relatório
Which of the following types of vertebrae occur in equal numbers in the rabbit, rat and man?
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Pergunta 5 Relatório
How many nuclei are found in pollen tube during fertilization?
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Pergunta 6 Relatório
If an animal is very active and has good muscular control, it is likely to have well-developed
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Pergunta 7 Relatório
A mixture of mercurous and mercuric nitrates is added to a food substance. A white precipitates is formed which on gentle heating turns red. The food substance is
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Pergunta 8 Relatório
Mosses, liverworts and ferns can be grouped together because they
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Pergunta 10 Relatório
A man with normal haemoglobin (AA) marries a woman who has sickle-cell haemoglobin (SS). They have a child who has a sickle-cell trait. Which of the following genotypes could be associated with the child’s haemoglobin?
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Pergunta 11 Relatório
Fehling's solution will readily change colour from blue to reddish colour when it is
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Pergunta 16 Relatório
Spirogyra reproduces vegetatively by
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Spirogyra reproduce using sexual or asexual reproduction methods. The process of reproduction varies depending on species of spirogyra. In vegetative varieties, reproduction occurs through the process of fragmentation, which involves the transformation of spirogyra through intercalary mitosis to produce new filaments.
Pergunta 17 Relatório
The presence of a diastema in the jaw bone indicates that the mammal lacks the teeth suitable for
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Pergunta 18 Relatório
Which of the following groups of factors is completely abiotic?
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Pergunta 22 Relatório
Which of the following statements is NOT true of the piliferous layer of root? It
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Pergunta 24 Relatório
The axial skeleton of a mammal does not include the bones of the
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Pergunta 25 Relatório
If a handful of soil is shaken with water and left to settle, the soil particles will settle from light to heavy particles as follows
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Pergunta 26 Relatório
Green plants are important in the ecosystem because they are
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Pergunta 27 Relatório
The structure above represents a quill feather. The structure labelled 'M' is the
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Pergunta 28 Relatório
Which of the following is INCORRECT? The prothallus of a fern
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Pergunta 32 Relatório
Which of the following lists of diseases, their causes and transmission is CORRECT?
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Pergunta 36 Relatório
Which of the following is NOT a waste product of plants?
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Plants need to excrete excess carbon dioxide and oxygen. Carbon dioxide is a waste product of aerobic respiration in plant cells. Oxygen is a waste product of photosynthesis
Pergunta 37 Relatório
Which of the following is NOT regarded as a pollutant on land or in the air?
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Pergunta 38 Relatório
Which of the following cell constituents is NOT common in both plants and animals?
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Pergunta 39 Relatório
Which of the following adaptations is NOT concerned with the flight of birds?
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Pergunta 41 Relatório
The parts used by the tapeworm to fasten itself to the host’s intestine are the
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Pergunta 43 Relatório
The mouth parts of the housefly are adapted for
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House flies can be easily identified by the four dark, longitudinal stripes on top of the thorax, or middle body region. They vary in length from l/8-l/4 of an inch. Their mouth parts are adapted for sponging up liquids; they cannot bite. These flies can only ingest liquid food. They feed on attractive solid food by regurgitating saliva on it. The saliva liquifies the solid material which is then sponged up with the proboscis. They require water since they are continually salivating and voiding liquids. Fly specks seen on many surfaces visited by house flies are the excreted wastes.
Pergunta 44 Relatório
Underground stems which grow horizontally through the soil are
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Pergunta 45 Relatório
Spirogyra and mucor can be grouped together as Thallophyta because
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Pergunta 46 Relatório
In the Burret test, some protein was mixed with sodium hydroxide solution. Which of the following chemicals should be added to the mixture for a positive results?
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Pergunta 47 Relatório
Which of the following invertebrates does NOT possess antennae?
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Pergunta 48 Relatório
The mammalian organ through which nourishment and oxygen diffuse into a developing embryo is called
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Pergunta 49 Relatório
Denitrifying bacteria in nature liberate gaseous nitrogen directly from
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Pergunta 50 Relatório
The removal of a man’s pancreas by surgical operation can affect only the digestion of
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