2011 JAMB Biology Past Questions

The function of the red head in male Agama lizards is to

In which of the following species is the biomass of an individual the smallest?

Seed plants are divided into

In which of the following groups of vertebrates is parental care mostly exhibited?

Which of the organisms represented are notable agricultural pests?

An economic importance of the organism represented by IV is that

The adult form of III is a vector of

The adaptive importance of nuptial flight from termite colonies is to

The gas evolved in the process is

The experimental set-up above is used to demonstrate the process of

Which of the following can cause shrinkage of living cells?

Which of the following is true of leucocytes?

The conversion of a nutrient into a molecule in the body of a consumer is referred to as

The ability of a living organism to detect and respond to changes in the environment is referred to as

In mammals, the exchange of nutrients and metabolic products occur in the

An example of an endospermous seed is

I. Parasitism → Sundew
ll. Autotrophism → Amoeba
III. Saprophytism → Alga
IV. Heterotrophism → Agama

Which of the above modes of nutrition is correctly matched with the organism that exhibits it?

I. Test tube containing cane sugar and water.
ll. Test tube containing cane sugar and diluted acid.
III. Test tube containing cane sugar and its degrading enzyme.

In which of the test tubes will glucose be detected after complete hydrolysis?

I. Test tube containing cane sugar and water.
ll. Test tube containing cane sugar and diluted acid.
III. Test tube containing cane sugar and its degrading enzyme.

The enzyme involved in the hydrolysis is

The part of the mammalian ear responsible for the maintenance of balance is the

The path followed by air as it passes through the lungs in mammals is

The movement response of a cockroach away from a light source can be described as

The vascular tissues in higher plants are responsible for

Which of the following organs regulates the levels of water, salts, hydrogen ions and urea in the mammalian blood?

The sequence of the one-way gaseous exchange mechanism in a fish is

The type of asexual reproduction that is common to both Paramecium and protists is

In nature, plants and animals are perceptually engaged in mutualism because

In an experiment to determine the percentage of humus and water in a soil sample, the following results were obtained:

Weight of the evaporating basin alone = 80.5g

Weight of basin and soil = 101.5g

Weight after drying the soil in the oven = 99.0g

Weight of basin and roasted soil = 95.5g

The percentage of humus in the soil sample is

An example of a filter-feeding animal is

Which of the following is a feature of the population pyramid of a developing country?

The interaction of a community of organisms with its abiotic environment constitutes

The vector of the malaria parasite is a

Which of the following instruments is used to measure relative humidity?

Exo-erythrocytic phase of the life cycle of malaria parasite occurs in the

Habitats are generally classified into

Dracunculiasis can be contacted through

Which of the following groups of environmental factors are density-dependent?

Millet, sorghum, maize and onions are common crops grown in Nigeria in the

In which of the following biomes is the south western part of Nigeria located?

Lack of space in a population could lead to an increase in

The inheritable characters that are determined by a gene located only on the X-chromosome are

If the cross of a red-flowered plant with a white-flowered plant produces a pink-flowered plant, it is an example of

Which of the following theories was NOT considered by Darwin in his evolutionary theory?

The crossing of individuals of the same species with different genetic characters is

The number of alleles controlling blood groups in humans is

During blood transfusion, agglutination may occur as a result of the reaction between

The fallacy in Lamarck’s evolutionary theory was the assumption that

The brightly coloured eye spots on the hind wings of a moth are an example of

The wings of a bat and those of a bird are examples of