Unit 1 Flashcards
Evolution
Process of change that transformed life over 3.5 billion years
What type of world changes over time?
Abiotic (not living)
Ex: continents
Whale evolution
The ancestors to modern whales lived on land
Biology
The study of living things
Questions to think about:
-How do we know what is alive?
-What are the criteria?
Do we need to provide evidence-based answers for biology?
Yes
Characteristics of Life:
1. Regulation
Organism can regulate its own body temperature
Ex: Rabbit has blood vessels in ear because it can’t sweat to regulate its body temperature
Homeostasis
Internal conditions relatively constant under changing environment
Characteristics of Life:
2: Energy processing
Capture
Use
Store (some organisms)
Characteristics of Life
3. Growth and Development
Organisms grow and develop following specific instructions coded for by their genes
Characteristics of Life
4. Reproduction
Produce next generation
Characteristics of Life
5. Response to environment
Stimulus –> response
Characteristics of Life
6. Evolutionary Adaptation
- Traits evolve over many generations
- Mutations and natural selection result in hereditable traits
Characteristics of Life
7. All living things are made of cells
Cells
- replicate
- cell membrane and cytoplasm
- organelles
- DNA (genetic materials)