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Notes Feb 23rd- Exam 2

Notes Feb 23rd- Exam 2 - Plants(terrestrial Eukaryotic true...

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Plants (terrestrial) Eukaryotic- true nucleus Kingdom- Plantae Multicellular- Many cells Autotrophs (photosynthetic) Chlorophyll Primary Producers Have embryo (sometimes within seed) Cell walls of cellulose- Supply support for plants Polymer of glucose Non- Digestible Would be like fiber for human Marine Advantages to Plant Life in the Water Surrounded by water- photosynthesis and cytoplasm No cuticle needed, because they won’t dry out No transport systems needed Nutrients and gases are dissolved in the water Metabolic wastes removed by diffusion Advantages of Plant Life on Land Greater Solar radiation (especially UV) Greater abundance of O2 and CO2 Less competition for nutrients on land Less predation (initially) Phytoplankton- microscopic algae which make up the majority of productivity on our planet Some are single celled, some are Multicellular. They are the primary producers of the oceans
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Diatoms-single celled algae which have a shell made of silicon dioxide (glass). They are rich in oils
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