i). Modification of the feeding habits; filter feeders;- fluid feeders,- insects feeders;-parasitic and saprophytic feeders ii) feeding in protozoa and hydra etc.
iii). feeding in mammals;
iv). modification of pests to effect digestive function of man, dog, rabbits etc.
i) Use the specimens and charts of the digestive system of housefly, butterfly, cockroach, tapeworm sheep or dog to illustrate different types of feeding mechanism
ii) students should observe provided specimens noting the various modification found in the animals
Definition of transport system; importance of diffusion osmosis to transport system; transport system in large organisms (plants and animals); importance of transport system; materials for transport structures of arteries, veins, vascular bundles
i)set up an experiment on rate of diffusion of a colored liquid. ii)students to observe and record the time taken by the colored
TRANSPORT SYSTEM CONTINUES
i)media of transportation e.g blood, latex, cell, sap, cytoplasm e.t.c ii) components and structure of blood;- white blood, red blood cells, platelets and plasma
i)instruct students to detach, the leaves of pawpaw, cassava, allemande or robber ii)observe and make inference on the materials the plants detached above
TRANSPORT SYSTEM CONTINUES
Mechanism of transport in
i)simple organism; multi-cellular, organism ; higher plants and animals; higher; asopthon and transportation of waters and mineral salts
i)explain the structure of artery vein using well drawn diagrams
i) Types of respiratory system; body surface respiration, Gill system; trached system; lungs
i) Display the Gills remove from a dead tilapia for students to observe the various structures. ii)students to observe the gill flakes, gill arch and gill filaments
RESPIRATORY SYSTEM CONTINUES
i) Mechanism of respiration in higher animals (inhalation and exhalation) ii) mechanism of respiration in lower animals
i). Mouth prepared slides showing respiratory organs of the earthworm, tilapia, toad, grasshopper and rats.
i). ask students to observe malpighian tubules in a dissected cockroach and rat
ii). Students to observe and saw malpighian tubule and the excretory system in rat and record their observations.
NUTRIENT CYCLING IN NATURE
i). Definition of nutrient cycling e.g. carbon cycle, oxygen and water cycle
ii). Representation and processes of each of the nutrient cycle listed above
iii). Importance of nutrient cycle to plants, animals and man
iv). Carbon-oxygen balance
Lead students to perform experiment to show absorption of carbon dioxide and release of oxygen during photosynthesis ii) draw the carbon cycle and water cycle
DECOMPOSITION IN NATURE ECOLOGICAL MANAGEMENT: TOLERANCE
i). Micro and macro decomposers ii). Importance and roles of decomposers to man
iii). Concept of minimum and maximum of tolerance.
iv). Geographic range-graph illustrating maximum and minimum range tolerance.
i). The teacher shall mount experiment to show that carbon dioxide, ammonia are released during decomposition
ii). Show through experiment that heat is released during decomposition
iii). The students should identify the gases released during decomposition
iv). To guide the student to perform experiment showing limit to tolerance v). The students shall subject the tilapia fish to different level of salt concentration and record the observation on the opercula movements