Edexcel IGCSE Biology 复习笔记 3.1.2 Sexual Reproduction in Flowering Plants Pollination Flowers are the reproductive organs of plants They usually contain both male and female reproductive ...
Edexcel IGCSE Biology 复习笔记 3.1.1 Types of Reproduction Sexual Reproduction Sexual reproduction is: The process involving the fusion of the nuclei of two gametes to form a zygote (...
Edexcel IGCSE Biology 复习笔记 2.10.13 The Role of Hormones: Advanced The Role of Hormones: Advanced As well as adrenaline, insulin, testosterone, progesterone and oestrogen, the following h...
Edexcel IGCSE Biology 复习笔记 2.10.12 The Role of Hormones The Role of Hormones: Basic A hormone is a chemical substance produced by a gland and carried by the blood, which alters the activ...
Edexcel IGCSE Biology 复习笔记 2.10.11 The Endocrine System The Endocrine System Information is sent through the endocrine (hormonal) system as chemical substances known as hormones Hormones...
Edexcel IGCSE Biology 复习笔记 2.10.10 Temperature Regulation The Role of Skin in Temperature Regulation The skin is our largest sense organ It contains many different receptors that enable us to d...
Edexcel IGCSE Biology 复习笔记 2.10.9 The Human Eye The Human Eye: Structure The eye is a highly specialised sense organ containing receptor cells that allow us to detect the stimulus of lig...
Simple Reflex Arc A reflex response (also known as an involuntary response) does not involve the conscious part of the brain as the coordinator of the reaction Awareness of a response having...
Edexcel IGCSE Biology 复习笔记 2.10.7 Synapses The Role of Neurotransmitters Neurones do not actually come into direct contact with each other Where the dendrites of two neurones meet (to ma...
