Edexcel IGCSE Biology: Double Science 復(fù)習(xí)筆記 2.10.6 The Human Nervous System The Human Nervous System: Structure The human nervous system consists of: Central nervous system?(CNS) – the?br...
Edexcel IGCSE Biology: Double Science 復(fù)習(xí)筆記 2.10.5 Co-ordination Systems in Humans The Human Nervous System & Endocrine System There are?two different control systems?in humans that w...
Edexcel IGCSE Biology: Double Science 復(fù)習(xí)筆記 2.10.4 The Role of Auxin in Phototropism The Role of Auxin in Phototropism Plants produce?plant growth regulators?(similar to hormones in anima...
Edexcel IGCSE Biology: Double Science 復(fù)習(xí)筆記 2.10.3 Response to Stimuli: Plants Response to Stimuli: Plants Plants need to be able to grow in response to certain?stimuli For example, plant...
Edexcel IGCSE Biology: Double Science 復(fù)習(xí)筆記 2.10.2 Control of Homeostasis Co-ordinating a Response Homeostasis?(maintaining controlled conditions within the body) is under?involuntary (au...
Edexcel IGCSE Biology: Double Science 復(fù)習(xí)筆記 2.10.1 Homeostasis Response to Change: Homeostasis Homeostasis is the?control?or?regulation?of the?internal?conditions?of a cell or organism So...
Edexcel IGCSE Biology: Double Science 復(fù)習(xí)筆記 2.9.2 Excretion in Humans The Organs of Excretion Humans have organs that are specialised for the removal of certain excretory products Excreto...
Edexcel IGCSE Biology: Double Science 復(fù)習(xí)筆記 2.9.1 Excretion The Need for Excretion in Humans Many of the necessary?metabolic reactions?that take place within the cells of organisms produc...
Edexcel IGCSE Biology: Double Science 復(fù)習(xí)筆記 2.8.7 Blood Vessels & the Circulatory System Blood Vessels There are three main types of blood vessel: Arteries Veins Capillaries Sm...
