Explaining Biology on Instagram: "How Conception Works Conception is the process by which a pregnancy begins — when a sperm and an egg join to form a new life. Ovulation An ovary releases an egg once per cycle. The egg lives for about 12–24 hours. Sperm enters the body During intercourse, sperm travel through the reproductive tract and can live up to 5 days. Fertilization A sperm meets the egg in the fallopian tube and combines genetic material, forming a zygote. Cell division The zygote divides

Standard test Unit 5 / Uncover 2 (Cambridge)

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World of Biology on Instagram: "We've all felt that pain - the kind that hits deep, whether it's in your body or your heart. Some pains can't be seen, only felt. But remember, every ache reminds you that you're still strong enough to feel and heal."

World of Biology on Instagram: "Read the caption 👇 Parkinson’s disease often begins silently, years before noticeable tremors appear. Early signs may include loss of smell, sleep disturbances, constipation, fatigue, mood changes, or subtle stiffness. These non-motor symptoms can go unrecognized, delaying diagnosis. Early awareness helps in timely evaluation, better symptom management, and improved quality of life."