CIE IGCSE Biology: 复习笔记：16.1.3 Sexual Reproduction in Plants Insect-Pollinated Flowers Flowers are the reproductive organ of the plant They usually contain both male and female reproductive pa...
CIE IGCSE Biology: 复习笔记：16.1.2 Sexual Reproduction Gametes & Zygotes Sexual Reproduction Sexual reproduction is a process involving the fusion of the nuclei of two gametes (sex cell...
CIE IGCSE Biology: 复习笔记：16.1.1 Asexual Reproduction Asexual Reproduction Asexual reproduction does not involve sex cells or fertilisation Only one parent is required so there is ...
CIE IGCSE Biology: 复习笔记：15.1.1 Drugs for Medicine What is a Drug? A drug is any substance taken into the body that modifies or affects chemical reactions in the body Some drugs are medicinal d...
CIE IGCSE Biology: 复习笔记：14.1.11 Tropisms Gravitropism & Phototropism Tropisms Plants can respond to changes in environment (stimuli) for survival, e.g. light, water, gravity Their response...
CIE IGCSE Biology: 复习笔记：14.1.10 Homeostasis: Temperature Control The Skin & Homeostasis: Extended Control of body temperature is a homeostatic mechanism Homeostasis is the maintenance of a...
CIE IGCSE Biology: 复习笔记：14.1.9 Homeostasis The Concept of Negative Feedback: Extended Negative feedback occurs when conditions change from the ideal or set point and returns cond...
CIE IGCSE Biology: 复习笔记：14.1.8 Homeostasis: Definition Homeostasis: Definition Homeostasis is defined as the maintenance of a constant internal environment Role of Insulin...
CIE IGCSE Biology: 复习笔记：14.1.7 Hormones in Humans Hormones & Their Associated Glands What is a Hormone? A hormone is a chemical substance produced by a gland and carried by the bloo...
