2017 JAMB Biology Past Questions

The piercing and sucking mouth parts are found in

The hormones that regulate plant growth are

Which of the following pair of organisms exhibit parasitic association?

Which of the following groups of animals can withstand the rigours of the arid land?

Suture joint is found in the

The organelle responsible for osmoregulation in Paramecium is

Use the diagram to answer the question that follows

The excretory organ of an earthworm is represented by

Use the diagram to answer the question that follows

The most efficient unit in terms of water conservation is represented by

The platelets in mammalian blood are responsible for

The most important factor that determines the different types of vegetation is

When testing for the presence of starch in a leaf, the reason for dipping the decolourised leaf in hot water is to

The relationship between remora and shark can best be described as

The major characteristic of a fresh water habitat is the possession of

The causative organism of cholera is

The process that takes place in the dark stage of photosynthesis is

Chlorofluorocarbons are air pollutants that originate from

Which of the following is organ level of organisation?

The simplest form of reproduction is

Which of the following is a characteristic of wind-pollinated flower?

The process required for formation of gamete in sexual reproduction is

In an experiment to determine the humus in a soil sample, the following results were obtained;

• Mass of dish – 20 g
• Mass of dry soil – 7.5 g
• Mass of dish + soil after burning = 25 g

The percentage of humus in the given sample is

The presence of termites and earthworms in soil promote

In a 15 m² habitat, the total number of Tridax counted using a 1.6 m² quadrant thrown randomly 50 times was 400. What is the Tridax population per square metre?

Which of the following is a sex-linked character?

The outer-most tissue of the herbaceous roots is the

The respective tissues that transport water and manufactured food in plants are

An adaptive feature of plants in the savanna is

A grasshopper’s cuticle becomes green during the season and black after fire. The reason for the change is to

Which of the following is the most advanced plant?

The soil type with the least ability to retain nutrients is

A humming bird is able to feed on nectar because its beak is

Use the diagram to answer the question that follows

The part labelled III acts as

Use the diagram to answer the question that follows

The part labelled II is the

The effect of overcrowding is

The vertebrae that allows the skull to nod and rotate are

The component of the cell that determines paternity resides in the

Which of the following beak types is an adaptation for aquatic feeding?

The insect-trapping by the leaves of Venus flytrap is an example of

Morphological variations in humans include

Which of the following is correct about blood transfusion?