Unifying themes in Biology
Biology

Unifying themes in Biology


this will be built on heavily as posting progresses. These unifying ideas should help to make it so that the interconnectivity of biology is clearer, so while learning, questions like "what is this all for/why is it important?" can be answered.

1. Emergent Properties - all life forms show hierarchy of organization extending from organic molecules to the ecosystem.

2. Cells- cell theory states that cells are the basic unit of life, of which all living things are composed, and that all cells are derived from preexisting cells. Two main cell types are Eukaryotic (Fungi, Plants, Animals and Protists) and Prokaryotic (Eubacteria, Archaebacteria)

3. Heritable Information- DNA codes for the continuity of life, the basic genetic code lies in the nucleotide sequence of the DNA. These nucleotides (arranged as genes) dictate the specific proteins of a given species.

4. Form and Function- are complimentary at every level of biological organization. Life's structures are the bases for life's functions. If you don't understand something's function, analyze its form, and vis versa.

5. All life forms are dependent upon interactions with their abiotic and biotic components. Organisms are open systems exchanging energy and nutrients with their environment. Nutrients cycle, energy flows. Ex, energy from the sun goes to producers to consumers and dissipates as heat. Life depends on energy sources.

6. Regulation- all functional aspects of life's chemistry must be regulated to maintain homeostasis. Feedback mechanisms are often integrated into the organism.

7. Unity and Diversity- diversity in the varying forms of life (three domains- Eukarya, Archaea, Eubacteria). Unity is found in many shared biochemical processes, such as, a common genetic code, or the basic chemistry of cell respiration.

8.Genetic change through time- Evolution, brought on by mutation and natural selection account for much of the unity and diversity in life.

9. Science includes observation based discovery and the testing of hypotheses through experimentation. Data analysis includes statistical studies to validate hypothesis. Statistical analysis, T-Score, and other calculations.

10. Science, Technology and society- many technologies are based upon scientific discovery and a desire to solve a problem.




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