Edexcel IGCSE Biology 復(fù)習(xí)筆記 3.1.4 Asexual Reproduction in Plants Asexual Reproduction in Plants Plants can reproduce?asexually?as well as?sexually Asexual reproduction only?involves?one p...
Edexcel IGCSE Biology 復(fù)習(xí)筆記 3.1.3 Practical: Conditions for Germination Practical: Conditions for Germination Germination?is the?start of growth in the seed Three factors are required for...
Edexcel IGCSE Biology 復(fù)習(xí)筆記 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 復(fù)習(xí)筆記 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 復(fù)習(xí)筆記 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 復(fù)習(xí)筆記 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 復(fù)習(xí)筆記 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 復(fù)習(xí)筆記 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 復(fù)習(xí)筆記 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...
