Lesson 10.1 · Unit 10, Block 1
44 questions on this block. Tap an answer and it moves on by itself — correct answers advance immediately, misses hold a few seconds so you can read why.
Click the buttons and watch what changes.
The model: inorganic molecules → organic molecules → protocells → first living cells → oxygen-producing autotrophs → aerobic heterotrophs. Chemical evolution makes molecules; organic evolution needs living cells.
Part 1Early Earth and chemical evolutionPart 2Where chemical ends and organic beginsPart 3Heterotrophs, autotrophs and oxygenPart 4Endosymbiosis — the orderPart 5Endosymbiosis — reading the cellsPart 6Applying the models