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Knowledge map

Biology 0610

How it all connects

Each row is a topic, each box a subtopic. Arrows point from something you should understand first to what it unlocks — so before electric circuits, review charge and current.

1.1Characteristics …1.2Classification a…1.3Features of orga…2.1Cell structure a…2.2Levels of organi…2.3Size of specimen…3.1Diffusion and os…3.2Active transport4.1Biological molec…5.1Enzyme action an…6.1Photosynthesis a…6.2Leaf structure a…7.1Diet and deficie…7.2Digestion and ab…8.1Xylem, phloem, t…9.1The heart and ci…9.2Blood and its co…10.1Pathogens, defen…11.1Gas exchange and…12.1Aerobic and anae…13.1Excretion and th…14.1The nervous syst…14.2Hormones and hom…14.3Sense organs — t…14.4Tropic responses…15.1Drugs, antibioti…16.1Asexual and sexu…16.2Sexual reproduct…16.3Sexual reproduct…17.1Genes, alleles a…17.2DNA and protein …17.3Mitosis and meio…18.1Natural selectio…19.1Food chains, foo…19.2The carbon and n…19.3Populations and …20.1Pollution, defor…21.1Biotechnology an…