Intoduction To Biology Flashcards
The scientific method
- Observe
- Asking a question
- Hypothesis/prediction
- Expirement
- Analysis
- Conclusion
- Sharing
Hypothesis
A proposed/testable explanation
(What will happen and why?)
Prediction
An expected outcome
(What will happen?)
Cell theory
All organisms made out of cells and other preexisting cells
Homeostasis theory
All of the organisms consistent in one enviroment
Evolution theory
All organisms evolving from one ancestor
Example of cell theory
The cell is the basic unit of life
Genetic information is passed from cell to cell during cell
Energy flow occurs within cells
Natural Selection
- Genetic diversity 2. Selective pressure
Evolution through natural selection
Changed through DNA over generations due to diversity
All factors of the living organisms:
- Cell membrane (one of more cells)
- Cytoplasm
- DNA/RNA
- Ribosomes
- Metabolic (obtain energy)
Characteristics of life
- Cells
- Reproducing by DNA
- Responding to changes in environment
- Obtain energy
- Evolving/evolution
Unicellular
One single cell (seen with microscope)
Multicellular
Multiple cells (human body)