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Bio Science , Lecture 1

by: Ráquel Cartèr
Ráquel Cartèr


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Theses are just lecture 1 notes
Plants In Todays World
Robert Clare
Class Notes
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This 4 page Class Notes was uploaded by Ráquel Cartèr on Friday February 5, 2016. The Class Notes belongs to 401 at 1 MDSS-SGSLM-Langley AFB Advanced Education in General Dentistry 12 Months taught by Robert Clare in Winter 2016. Since its upload, it has received 14 views. For similar materials see Plants In Todays World in Biology at 1 MDSS-SGSLM-Langley AFB Advanced Education in General Dentistry 12 Months.


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Date Created: 02/05/16
Lecture 1 Notes: An Introduction to Science , Living Systems and Plants 1. The Scientific Method ● Observation ● Hypothesis ● Experiment ● Conclusions Tyndall Effect : is light scattering by particles in a collid or else particles in a very fine suspension Theory vs.Hypothesis: Scientific Theory develops over time ­­­­­­­>  observe and research, form hypothesis, test  hypothesis , reach and conclusion, repeat Living Organisms: 1.grow and reproduce 2.repsond to the environment 3.change over time 4.acquire energy 5.use energy to organize matter 6.are made of organic molecules Plant kingdom groups: nonvascular plants seedless vascular plants gymnosperms angiosperms spore­ single cell seed­multicellular  ­embryo ­nutrients flower plants: use animals to move their food around, get animals to move stuff around Flowering Plants (Angiosperms): ­dicots : have 4 or 5 usually ­monocots : have 3 or 6 petals Life Cycles: Annual­ yearly life cycle Biennial­two years life cycle Perennial­lives for many years Categories of Living Organisms: (Living Things) Domains: Prokaryotic Cells , Eukaryotic Cells Kingdoms: Protists,Fungi,Plants,Animals ­Prokaryotic cells: are small and have a continuous cell of DNA ex:size of a golf ball ­Eukaryotic cells: has a nucleus, containing the DNA. Eukaryotic Kingdoms: Nutrition­ Animals (heterotrophic), Plants (autotrophic), Fungi (heterotrophic), Protists  (heterotrophic and autotrophic) number of cells: Animals (multicellular) , Plants ( multicellular), Fungi ( Unicellular and  multicellular) , Protists ( unicellular and multicellular ) Plant and animal cells are always multicellular. Autotrophic make their own food. Heterotrophic organisms that cannot fix carbon and uses organic carbon for growth. The Life cycle of an annual plant: seed, plants, flower,fruit,seed,death Plant structure : Herebaceous Plants ­non­woody Woody plants ­shrub or tree Atoms and molecules: Elements in Plants  ­Plants are made out of about 18 elements ­9 Macronutrients needed in large amounts ­9 Micronutrients needed in smaller amounts Multicellular Organisms: ­Levels of Organization ● cell ● tissue ● organ ● organ system ● organism Modular vs Unitary Organisms: Modular­ repeating modules Unitary­ forming a single uniform entity ex: leaf and stem Life on earth: 1. Formation of Earth 2. Prokaryotic Cells 3. Eukaryotic Cells 4. Multicellular Organisms 5. Flowering Plants Six major elements in plants  (Macronutrients) 1. Carbon 2. Hydrogen 3. Oxygen 4. Phosphorus 5. Potassium 6. Nitrogen Carbon comes from the air. Hydrogen comes from water. Plants like Nitrogen. Vegetative (Nitrogen) Fruit/Flowers (Phosphorus) 


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