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Chapter 1 BIOLOGY AND THE TREE OF LIFE: THEMES IN THE STUDY OF LIFE SCI...
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Objectives. Be able to identify, explain and give examples of the six themes central to living organisms that we will emphasize throughout the semesterBe able to describe how science works as a processBe familiar with relevant vocabulary . Six Unifying Themes Of Life. Living things:Are organized, there are many hierarchical levels of biological structure. Each level exhibits emergent properties not seen in the lower level Are made of cell(s)Are self regulating through regulatory feedbackS30119
Chapter 1 BIOLOGY AND THE TREE OF LIFE: THEMES IN THE STU...
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1. Chapter 1 BIOLOGY AND THE TREE OF LIFE: THEMES IN THE STUDY OF LIFE & SCIENTIFIC PROCESS
2. Objectives Be able to identify, explain and give examples of the six themes central to living organisms that we will emphasize throughout the semester
Be able to describe how science works as a process
Be familiar with relevant vocabulary
3. Six Unifying Themes Of Life Living things:
Are organized, there are many hierarchical levels of biological structure. Each level exhibits emergent properties not seen in the lower level
Are made of cell(s)
Are self regulating through regulatory feedback
Show correlation between structure and function
Interact with their environment, responding to changes
Contain heritable information: encoded on DNA, genes are units of information
4. Theme 1: Life is Organized
6. Theme 1: Life is Organized
7. Emergent properties
8. Taxonomy Biologists utilize the “order” of the system to group organisms by taxonomy
Taxonomic schemes undergo change as our understanding of life becomes more complete.
Molecular understanding has brought about revolutionary change
9. Theme 2: All Organisms Are Made Of Cells.
10. Prokaryotic vs. Eukaryotic Cells
11. Theme 3: Regulatory Mechanisms Ensure A Dynamic Balance In Living Systems. Negative feedback slows a process down
results in a change in activity
Positive feedback speeds a process up
promotes continuation of an activity
12. Theme 4: Form Fits Function.
13. Theme 5: Organisms Are Open Systems That Interact Continuously With Their Environments. Environmental interactions include both biotic and abiotic components
Ecosystem dynamics include two major processes:
Nutrient cycling
Energy flow
14. Theme 6: The Continuity Of Life Is Based On Heritable Information In The Form Of DNA.
15. Theory of Evolution by Natural Selection Evolution means that species are not independent and unchanging entities but are related to each other and can change over time
Two criteria are needed for Natural Selection to occur:
1) Heritable traits: Adaptation must be genetically based
2) Traits lead to differential survival (some combinations are better than others)
16. SCIENCE AS A PROCESS
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Chapter 1 BIOLOGY AND THE TREE OF LIFE: THEMES IN THE STUDY OF LIFE SCIENTIFIC PROCESS - Objectives. Be able to identify, explain and give examples of the six themes central to living organisms that we will emphasize throughout the semesterBe able to describe how science works as a processBe familiar with relevant vocabulary . Six Unifying Themes Of Life. Living things:Are organized, there are many hierarchical levels of biological structure. Each level exhibits emergent properties not seen in the lower level Are made of cell(s)Are self regulating through regulatory feedbackS30119
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AP Biology Chapter 1 Study of Life Themes Concepts -
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Themes in the Study of LIFE - 1. The living world is a hierarchy, with each level of biological structure building on the level below it.. Life is highly organizedLevels of biological organization: atoms- molecules- organelles- cells- tissues- organs- organ systems- organism- population- community- ecosystem- biosphere. Wha
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