Exercises
16/1. Organism characteristics
16/2. Evolution
Write a short essay on evolution. Some key events are listed below.
the formation of the planet, the first unicellular organisms , first prokaryotic cells capable of photosynthesis , oxygen released into the atmosphere, multicellular organisms , invertebrates , the development of fish , life expanded to land , the development of reptiles , the development of birds and mammals.
the formation of the planet, the first unicellular organisms , first prokaryotic cells capable of photosynthesis , oxygen released into the atmosphere, multicellular organisms , invertebrates , the development of fish , life expanded to land , the development of reptiles , the development of birds and mammals.
Sinulla ei ole tarvittavia oikeuksia lähettää mitään.