2022 - JAMB Biology Past Questions and Answers - page 1

The correct answer is Option C

Common sources of air pollution include household combustion devices, motor vehicles, industrial facilities, and forest fires. These sources release pollutants that are major public health concerns, including particulate matter, carbon monoxide, ozone, nitrogen dioxide, and sulfur dioxide.

The correct answer is Option D

The main parts of a snail's body include the head, the visceral hump, and the foot.

The correct answer is Option C

The body of the porcupine fish is covered in spines. The fish swells as a result of sucking in water, which makes the spines protrude. As a result, it changes from a little mouthful to an uneatable ball of sharp spines. A deadly poison is also present in its flesh as an additional defence.

The correct answer is Option B

Motile micro-organisms or cells can change the direction of their locomotion in response to certain external stimuli. This change in direction of movement is called taxis and is a tactic movement.

The correct answer is Option B

Depending on how the chromosomes and spindle are physically, mitosis is thought to have five stages. Prophase, prometaphase, metaphase, anaphase, and telophase are these stages.

During mitosis, the genetic material carried in the nucleus of a parent cell is separated into two identical daughter cells. Metaphase, which is the third phase of this process, plays a critical role in this separation.

The correct answer is Option A

The primary nitrogenous waste product produced by the majority of terrestrial insects is uric acid. Uric acid is a highly insoluble and relatively non-toxic waste product.

As a result, it can crystallise out of solution and be either eliminated as a solid waste substance with low water loss or maintained in the body.

The correct answer is Option C

The Southern Guinea Savanna vegetation zone in Nigeria is primarily found in the central part of the country. Specifically, it covers states like Kogi and Kwara. * **Kogi and Kwara** are located within the central region of Nigeria. * The other options include states that are either too far north or too far south to be considered within the Southern Guinea Savanna.

The correct answer is Option A

The second stage of photosynthesis, also known as the biosynthetic or assimilatory stage, is called the Dark stage. During this stage, a complex set of reactions takes place that does not require solar light, converting carbon dioxide and other compounds into sugars.

The process of assimilation of carbon by some enzymes is dependent on solar light.

The correct answer is Option A

The body regulates temperature and removes waste by secreting water, sodium salts, and nitrogenous waste (such as urea) onto the skin surface using sweat glands.