Biology, 15.02.2021 21:00, brittanylrodgers99

With a ruler, draw a line that is 20 cm long. Divide the line into five, 4-cm segments. On a scale of each segment representing one billion years, label the following events in the history of Earth: a. formation of the earth
b. origin of life
c. evolution of photosynthesis
d. evolution of eukaryotes
e. evolution of multi-cellular life
f. the Cambrian explosion
g. first vertebrate land animals
h. evolution of dinosaurs
i. evolution of human beings

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With a ruler, draw a line that is 20 cm long. Divide the line into five, 4-cm segments. On a scale o...