Biology Specimen for WAEC 2025

Are you writing the upcoming waec biology exam and searching for the biology specimen for waec 2025? If yes, i will like to welcome you to masterwaec.com where we shared with you the verified Biology Specimen for WAEC 2025 and what to expect in your waec biology practical examination 2025.

The west african examination council (WAEC) has officially released the biology Specimen for WAEC 2025 examination. In this blog post, we have also provided you some features, similarities and likely questions and answers to expect under each specimen.

Biology Specimen for WAEC 2025

Below are the complete specimens for waec biology 2025 examination:

SPECIMEN A	Gill of fish (freshly procure)
SPECIMEN B	Whole liver from a domestic fowl with gall bladder attached, in a Petri dish (freshly procured)
SPECIMEN C	Lungs from a domestic fowl on a white tile (freshly procured)
SPECIMEN D	Whole gizzard from a domestic fowl, in a Petri dish (freshly procured)
SPECIMEN E	Whole intestine from a domestic fowl spread in a tray (freshly procured)
SPECIMEN F	Ginger rhizome (fresh)
SPECIMEN G	Onion bulb
SPECIMEN H	Leaf of Bryophyllum (with adventitious roots)
SPECIMEN J	Cassava stem
SPECIMEN K	Cassava tuber
SPECIMEN L	Thoracic vertebra
SPECIMEN M	Humerus bone
SPECIMEN N	Mango seed (dry)
SPECIMEN P	Femur bone
SPECIMEN Q	Lumbar vertebra
SPECIMEN R	Orange seeds (dry)

 

ALSO READ: WAEC Syllabus for Biology 2025

Biology Specimen for WAEC 2025

Specimen A: Gill of fish (freshly procured).

The gill is an essential respiratory organ in fish, enabling them to extract oxygen from water and expel carbon dioxide. It consists of delicate, feathery filaments that provide a large surface area for efficient gas exchange. Water flows over the gill filaments, and oxygen diffuses into the bloodstream while carbon dioxide is released. This adaptation allows fish to survive and function effectively in their aquatic habitat.

FEATURES:
• Thin filaments
• Absorbs oxygen from water
• Releases carbon dioxide

FUNCTIONS:
• Respiration
• Gas exchange
• Allows fish to thrive in aquatic environments

Specimen B: Whole liver from a domestic fowl with gall bladder attached, in a Petri dish (freshly procured)

The liver is a crucial organ in a domestic fowl, playing a key role in detoxification, metabolism, and energy storage. It produces bile, which is temporarily stored in the gall bladder before being released into the digestive system to aid in the breakdown and absorption of fats.

Additionally, the liver helps in filtering toxins from the blood, storing essential nutrients, and regulating metabolic processes, making it one of the most important organs in the body.

FEATURES:
• Vital organ
• Produces bile
• Filters toxins from blood
• Stores energy and nutrients

FUNCTIONS:
• Detoxification
• Metabolism
• Energy storage
• Aids in fat absorption

Specimen C: Lungs from a domestic fowl on a white tile (freshly procured)

The lungs of a domestic fowl are essential respiratory organs responsible for gas exchange. Unlike mammals, bird lungs are compact and connected to air sacs that ensure a continuous flow of oxygen. Oxygen is absorbed into the bloodstream while carbon dioxide is expelled. The lungs contain tiny air capillaries instead of alveoli, allowing efficient gas exchange. This specialized respiratory system enables birds to sustain high energy levels needed for activities like flying.

FEATURES:
• Made up of tiny air sacs (alveoli)
• Exchanges oxygen and carbon dioxide
• Essential for gas exchange

FUNCTIONS:
dioxideSpecime
• Respiration
• Gas exchange
• Brings oxygen into the body
• Removes carbon dioxide

Specimen D: Whole gizzard from a domestic fowl, in a Petri dish (freshly procured)

The gizzard is a thick, muscular organ in birds that plays a crucial role in digestion by grinding food into smaller particles. Since birds lack teeth, the gizzard uses its strong muscles and tough inner lining to break down tough plant materials and grains. In many birds, small stones or grit are swallowed and stored in the gizzard to aid in the grinding process. This adaptation allows birds to efficiently digest a wide variety of food sources.

FEATURES:
• Muscular organ
• Grinds food in digestive process
• Breaks down tough plant material

FUNCTIONS:
• Digestion
• Breaks down food
• Absorbs nutrients

Specimen E: Whole intestine from a domestic fowl spread in a tray (freshly procured)

The intestine is a crucial organ in the digestive system of a domestic fowl, responsible for absorbing nutrients from digested food. It is a long, coiled tube lined with numerous finger-like projections called villi, which increase the surface area for efficient absorption of nutrients into the bloodstream. The intestine is divided into the small and large intestines, each playing a role in digestion and waste elimination. This organ ensures that the bird obtains the necessary nutrients for growth, energy, and overall survival.

FEATURES:
• Long, thin tube
• Finger-like projections (villi)
• Absorbs nutrients from food

FUNCTIONS:
• Digestion
• Absorbs nutrients
• Essential for survival

Specimen F: Ginger rhizome (fresh)

Ginger is a flowering plant known for its spicy, aromatic rhizome, which is widely used in cooking and traditional medicine. The rhizome is an underground stem that stores nutrients and produces new shoots and roots, allowing the plant to grow and spread. Ginger has been valued for centuries for its medicinal properties, including relieving nausea, reducing inflammation, and aiding digestion. Its adaptability and health benefits make it an important plant in both culinary and medicinal applications.

FEATURES:
• Underground stem
• Produces new shoots and roots
• Spicy, edible root

FUNCTIONS:
• Reproduction
• Medicinal properties
• Relieves nausea and pain

Specimen G: Onion bulb

The onion is a plant with a bulbous underground storage organ that serves as a food reserve for the plant. The bulb consists of multiple layers of fleshy scales, which store energy and nutrients needed for growth. Onions are widely used in cooking due to their strong flavor and aroma, making them a staple ingredient in many cuisines around the world. Besides culinary uses, onions also have medicinal properties, including antibacterial and antioxidant benefits.

FEATURES:
• Bulbous underground storage organ
• Layers of cells store energy and nutrients
• Edible

FUNCTIONS:
• Food source
• Stores energy and nutrients
• Adds flavor and texture to dishes

Specimen H: Leaf of Bryophyllum (with adventitious roots)

Bryophyllum is a unique plant known for its ability to reproduce vegetatively through its leaves. Small plantlets with adventitious roots develop along the edges of the leaf, eventually detaching and growing into new plants. This adaptation allows Bryophyllum to reproduce rapidly and thrive in various environments without relying on seeds. Its efficient propagation method makes it a resilient and successful species in nature.

FEATURES:
• Adventitious roots form on leaves
• Reproduces quickly and efficiently
• Successful species in many environments

FUNCTIONS:
• Reproduction
• Adaptation
• Allows plant to thrive in various environments

Specimen J: Cassava stem

The cassava plant is a tropical crop widely cultivated for its starchy root, which serves as a major food source. The stem is tough and fibrous, providing structural support for the plant. It also plays a crucial role in vegetative propagation, as cassava is commonly grown from stem cuttings rather than seeds. This hardy plant is an essential staple in many communities, offering a reliable source of carbohydrates and essential nutrients for human consumption.

FEATURES:
• Tough, fibrous material
• Provides support and structure
• Starchy root used as food source

FUNCTIONS:
• Support and structure
• Food source
• Provides energy and nutrients

Specimen K: Cassava tuber

The cassava tuber is the edible, starchy root of the cassava plant, serving as a major source of carbohydrates. It has a white or yellowish flesh that is rich in energy but low in protein. Cassava is a staple food in many tropical regions, where it is processed into various forms such as garri, fufu, and tapioca. Despite its high carbohydrate content, proper processing is necessary to remove naturally occurring toxins before consumption.

FEATURES:
• Starchy, edible root
• High in carbohydrates, low in protein
• Staple food for many people

FUNCTIONS:
• Food source
• Provides energy and nutrients
• Essential for survival

Specimen L: Thoracic vertebra

The thoracic vertebra is a type of vertebral bone found in the chest region of the spine. It consists of a vertebral body, pedicles, and transverse processes, which provide structural support and attachment points for ribs. This bone plays a crucial role in protecting the spinal cord while also allowing for limited flexibility and movement of the upper body. As part of the skeletal system, the thoracic vertebra helps maintain posture and supports the body’s weight.

FEATURES:
• Body, pedicles, transverse processes, and spinous process
• Provides support and protection for spinal cord
• Allows for flexibility and movement

FUNCTIONS:
• Support and protection
– Flexibility and movement
– Essential for spinal column

Specimen M: Humerus bone

The humerus is the long bone of the upper arm, connecting the shoulder to the elbow. It consists of a shaft, a rounded head that fits into the shoulder joint, and condyles at the lower end that articulate with the forearm bones. The humerus provides structural support, serves as an attachment site for muscles and ligaments, and plays a vital role in arm movement and flexibility. It is essential for various motions, including lifting, rotating, and bending the arm.

FEATURES:
• Long bone of upper arm
• Shaft, head, and condyles
• Provides support and attachment points for muscles and ligaments

FUNCTIONS:
• Support and attachment points
• Allows for movement and flexibility
• Essential for skeletal system

Specimen N: Mango seed (dry)

The mango seed is the reproductive structure of the mango plant, enclosed within a hard, woody coat that protects the single embryo inside. It plays a crucial role in the plant’s life cycle, enabling reproduction and dispersal. Under suitable conditions, the seed germinates to produce a new mango plant. Mango seeds are also known for their medicinal and nutritional properties, as they contain beneficial compounds used in traditional remedies.

FEATURES:
• Hard, woody coat
• Single embryo
• Reproductive structure

FUNCTIONS:
• Reproduction
• Allows mango plant to reproduce and spread
• Essential for life cycle

Specimen P: Femur bone

The femur is the longest and strongest bone in the human body, located in the thigh. It consists of a shaft, a rounded head that fits into the hip joint, and condyles at the lower end that articulate with the knee joint. The femur provides structural support, serves as an attachment site for muscles and ligaments, and plays a crucial role in movement, weight-bearing, and flexibility of the leg. Its strength enables stability and mobility in walking, running, and other physical activities.

FEATURES:
• Long bone of thigh
• Shaft, head, and condyles
• Provides support and attachment points for muscles and ligaments

FUNCTIONS:
• Support and attachment points
• Allows for movement and flexibility
• Essential for skeletal system

Specimen Q: Lumbar vertebra

The lumbar vertebra is a bone in the lower back region of the spine, designed to support body weight and provide flexibility. It consists of a large vertebral body, pedicles, transverse processes, and a spinous process, all of which contribute to spinal stability and movement. The lumbar vertebra plays a crucial role in protecting the spinal cord, allowing for bending and twisting motions, and serving as an attachment site for muscles and ligaments that support posture and movement.

FEATURES:
• Body, pedicles, transverse processes, and spinous process
• Provides support and protection for spinal cord
• Allows for flexibility and movement

FUNCTIONS:
• Support and Functions
• Flexibility and movement
• Essential for spinal column
• Bears weight of body
• Provides attachment points for muscles and ligaments

Specimen R: Orange seeds (dry)

• Group Specimen: Orange seeds (dry) can be provided as a group specimen for 5-10 candidates, allowing multiple students to observe and study the specimen simultaneously.
• Individual Labels: Each specimen, including the Orange seeds (dry), must carry an individual label (e.g., R) to identify it clearly.

This labeling system ensures that each specimen is easily recognizable and distinguishable from others.

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These are the complete biology practical specimens for waec 2025, if you have question related to any of the above mentioned specimen, feel free to drop a comment below