OPEC daily basket price stands at $72.58 a barrel Friday

Cellular respiration 4. Movement: (a) Muscles (b) Skeletal tissues 5. Reproduction (a) Secondary sexual characteristics(b)Prenatal/Antenatal care G. Plant Structure and Physiology Morphology of monocotyledonous and dicotyledonous plants. 2. Transport: Guttation 3. Reproduction: Floral formula H. Humans and their Environment 1. Integrated water resources management. 2. Health and hygiene (a) Drug abuse (b) Community health (c) First Aid I. Evolution Recombinant DNA Technology J. Biology and Industry 1. Biology and water industry (a) Contamination of water (b) Identification of polluted water (c) Waste water treatment 2. Biology and fishing industry (a) Fish stock management (b) Fish farming 3. Biology and food industry: Food additives 4. Biology and agriculture 5. Biotechnology 6. Biological fuel generation A. Concept of Living Cell theory Irritability as a basic characteristic of protoplasm (a) Types of responses: taxis and nastism (b) Environmental factors that evoke responses; temperature, pH etc 3. Excretory Systems (a) Diseases of the kidney: Nephritis, kidney stone and diuresis, Their effects and remedies. (b) Diseases of the liver: infective hepatitis, cancer of the liver and gall stones. Their effects and remedies. 4. Sense organs. (a) Nose. (b) Tongue. (c) The skin. 5. Reproduction (a) Courtship behaviour in animals: (i) Pairing (ii) Display e.g. peacocks (iii) Territoriality (iv) Seasonal migration associated with breeding in herrings, eels and birds. (b) Metamorphosis and life history of housefly. (c) Adaptive features in a developing animal: (i) Yolk in egg of fish, toad and birds for nourishment (ii) Placenta in animals (d) Germination of seeds (i) Essential factors which affect developing embryo. (ii) Types of germination B. Plant and Animal Nutrition 1. Nitrogen cycle 2. Modes of nutrition: autotrophic, chemosynthetic, carnivorous plants 3. Alimentary System (a) Alimentary tracts of different animals (b) Description and function of various parts. 4. Feeding habits (a) Categories: Carnivorous, herbivorous and omnivorous (b) Modifications and mechanisms associated with the following habits; filter feeding, fluid feeding, feeding adaptation in insects, saprophytic feeding, parasitic feeding etc. C. Basic Ecological Concepts 1. Ecological Components: Lithosphere, hydrosphere, atmosphere, niche 2.Population Studies by Sampling Population size Dominance Density 3. Energy transformation in nature: (a) Energy loss in the ecosystem (b) Solar radiation: its intake and loss at the earth’s surface. (c ) Energy loss in the biosphere. 4. Nutrient Cycling in Nature (a) Carbon Cycle: (i) Process of carbon cycle (ii) Importance of carbon in nature. (b) Water Cycle: (i) Importance of water cycle, (ii) Importance of water to living organisms. 5. Ecological Management: Tolerance, Minimum and maximum range 6. Habitats (a) Aquatic habitat: marine, estuarine fresh water under the following headings: (i) characteristics of habitat (ii) distribution of plants and animals in the habitat, (iii) adaptive features of plants and animals in the habitat. (b) Terrestrial habitat: marsh, forest, grassland, arid land should be studied under the following headings: (i) characteristics of habitat (ii) distribution of plants and animals in the habitat. (c) Balance in Nature Dynamic equilibrium population and population density. 7. Relevance of Biology to Agriculture: Classification of plants based on life cycle (b) Effects of agricultural practices on ecology (i) Bush burning (ii) Tillage (iii) Fertilizer (iv) Herbicide/pesticide (v) Different farming methods 8. Microorganisms: Man and His Health. (a) Microorganisms around us (i) Microorganisms in air and water (ii) Groups of microorganisms: bacteria, viruses, some algae, protozoa, and some fungi. (b) Microorganisms in our bodies and food (c) Public Health Food hygiene and health organization. D. Application of Variations Crime detection Blood transfusion Determination of paternity E. Evolution 1. Adaptation for survival Factors that bring about competition Intra and Inter-species competition (c) Relationship between competition and succession 2. Structural Adaptation for; obtaining food protection and defense securing mates for reproduction regulating body temperature conserving water 3. Adaptive Colouration Plants and animals Colouration and their functions

VIENNA, 6th September, 2021 - The price of OPEC basket of thirteen crudes stood at US$72.58 a barrel on Friday, compared with US$71.64 the previous day, according to OPEC Secretariat calculations. The OPEC Reference Basket of Crudes is made up of the following: Saharan Blend (Algeria), Girassol (Angola), Djeno (Congo), Zafiro (Equatorial Guinea), Rabi Light (Gabon), Iran Heavy (Iran), Basra Light (Iraq), Kuwait Export (Kuwait), Es Sider (Libya), Bonny Light (Nigeria), Arab Light (Saudi Arabia), Murban (UAE) and Merey (Venezuela).