NATIONAL Open University of Nigeria2025-09-152025-09-152023https://nou.edu.ng/coursewarecontent/BIO101_%20General%20Biology%20I.pdfhttps://nou.edu.ng/coursewarecontent/BIO101_%20General%20Biology%20I.pdfhttps://nigeriareposit.nln.gov.ng/handle/20.500.14186/2220This course material is designed to enable the students to understand the basic concepts of ecology, life support and ecosystem. It will also guide their understanding of various natural phenomena in the planet earth.• Properties of life. • The diversity of life and its organization. • Introduction to biological inquiry. • Scientific inquiry method. • Microscopy and the cell theory. • Structure and functions of the cell. • Cell and cell components. • Cells communication. • Tissues, organs and organ systems. • Characteristics and classification of living things. • The study of genes and chromosomes. • Reproduction process and life cycles. • Interrelationship between organisms. • Heredity and variation. • Introduction to evolution. • Natural selection. • Elements of ecology.enArticle