CIE IGCSE Biology: 復(fù)習(xí)筆記：17.1.1 Chromosomes, Genes & Proteins The Structure of Genes Inheritance of Chromosomes, Genes and DNA Inheritance?is the?transmission of genetic information ...
CIE IGCSE Biology: 復(fù)習(xí)筆記：16.1.6 Sexually Transmitted Infections STIs & HIV/AIDS Unprotected sexual intercourse can lead to the transfer of pathogens via exchange of body fluids Infec...
CIE IGCSE Biology: 復(fù)習(xí)筆記：16.1.5 Sexual Hormones in Humans Secondary Sexual Characteristics Primary sexual characteristics are present during development in the uterus and are the differe...
CIE IGCSE Biology: 復(fù)習(xí)筆記：16.1.4 Sexual Reproduction in Humans The Male Reproduction System The male reproductive system Male reproductive structures and their function: The Female Reprod...
CIE IGCSE Biology: 復(fù)習(xí)筆記：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: 復(fù)習(xí)筆記：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: 復(fù)習(xí)筆記：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: 復(fù)習(xí)筆記：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: 復(fù)習(xí)筆記：14.1.11 Tropisms Gravitropism & Phototropism Tropisms Plants can respond to changes in environment (stimuli) for survival, e.g.?light, water, gravity Their response...
