CIE IGCSE Biology: 复习笔记：19.1.2 Food Chains & Food Webs
CIE IGCSE Biology: 复习笔记：19.1.2 Food Chains & Food Webs Food Chains & Food Webs A food chain with three trophic levels A food chain shows the transfer of energy from one o...
CIE IGCSE Biology: 复习笔记：19.1.1 Transfer of Energy
CIE IGCSE Biology: 复习笔记：19.1.1 Transfer of Energy Transfer of Energy Transfer of Energy The Sun is the principal source of energy input to biological systems Energy flows through living organi...
CIE IGCSE Biology: 复习笔记：18.1.5 Artificial Selection
CIE IGCSE Biology: 复习笔记：18.1.5 Artificial Selection Selective Breeding Selective breeding means to select individuals with desirable characteristics and breed them together The p...
CIE IGCSE Biology: 复习笔记：18.1.4 Natural Selection
CIE IGCSE Biology: 复习笔记：18.1.4 Natural Selection Natural Selection In any environment, the individuals that have the best adaptive features are the ones most likely to survive and repro...
CIE IGCSE Biology: 复习笔记：18.1.3 Adaptive Features: Extended
CIE IGCSE Biology: 复习笔记：18.1.3 Adaptive Features: Extended Hydrophytes & Xerophytes: Extended Hydrophytes Plants adapted to live in extremely wet conditions Common adaptations include: Lar...
CIE IGCSE Biology: 复习笔记：18.1.2 Adaptive Features
CIE IGCSE Biology: 复习笔记：18.1.2 Adaptive Features Adaptations & Fitness Adaptive features are the inherited functional features of an organism that increase its fitness Fitness is th...
CIE IGCSE Biology: 复习笔记：18.1.1 Variation
CIE IGCSE Biology: 复习笔记：18.1.1 Variation Types of Variation Variation is defined as differences between individuals of the same species Phenotypic variation is the difference in ...
CIE IGCSE Biology: 复习笔记：17.1.9 Codominance & Sex-Linked Characteristics: Extended
CIE IGCSE Biology: 复习笔记：17.1.9 Codominance & Sex-Linked Characteristics: Extended Codominance: Extended Codominance Codominance occurs when both alleles in heterozygous organisms contribut...
CIE IGCSE Biology: 复习笔记：17.1.8 Monohybrid Inheritance
CIE IGCSE Biology: 复习笔记：17.1.8 Monohybrid Inheritance Inheritance: Definitions Inheritance is the transmission of genetic information from one generation to the next generation A gene i...
