BIOL120 Lecture Notes - Lecture 3: Green Algae, Li Shizhen, Brown Algae
23 Feb 2016
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Plant blindness syndrome inability to recognize plants in ones own environment. Plants are resources for new pharmaceuticals, biofuels, remediation, enhancing ecosystem diversity, maintaining quality of life, scientific discovery. The challenges for plants include: harvesting light energy, staying wet when things get dry, dealing with gravity, divide or be conquered, leveraging resources. Before darwin"s time, scientist have used patterns and determined how the change over time to study the origin of plants. Darwin found patterns showing descent with modification from common ancestors and finalized with natural selection to be the main driving change. Free oxygen available for use around 2:00 pm. Around 6 am the first photosynthetic organisms appeared on earth. Humans just before midnight at (11:59:30 pm) Common ancestor for animals, fungi, and plants was the protista. The early beginnings of earth originated with a single cellular prokaryote (3500-4000. They differentiated into bacteria and archaea (still prokaryotic) difference being their structure and conditions they can withstand (3500 mya)
