The Bio Brief

Changes at Puberty

During puberty, many changes take place in the body. These changes prepare a child to become…
Adolescence and Puberty

What is Adolescence? Adolescence is the period of life when a child’s body changes and prepares…
REACHING THE AGE OF ADOLESCENCE

Introduction: All living organisms grow and change as they move from childhood to adulthood. In humans…
Reproductive Health

What is Reproductive Health? It means physical, mental, and social well-being related to reproduction. It is…
What Happens When the Egg Is NOT Fertilised?

Every month: Ovary releases one egg. Uterus prepares for pregnancy But… If no sperm meets the…
Human Reproductive System

Humans reproduce sexually. Two systems are involved: Male Reproductive System Female Reproductive System Male Reproductive System…
Reproduction in Human Beings

1. Mode of Reproduction in Humans Humans reproduce by sexual reproduction. Sexual Reproduction means: 2. Growth…
SEXUAL REPRODUCTION

What is Sexual Reproduction? A single individual cannot produce offspring alone. Why Do Organisms Need Sexual…
MODES OF REPRODUCTION USED BY SINGLE ORGANISMS

(Asexual Reproduction) What is Asexual Reproduction? 1. FISSION Meaning: In unicellular organisms, reproduction occurs by cell…
THE IMPORTANCE OF VARIATION

What Is Variation? Variation means small differences found among individuals of the same species. Example: Organisms…