Chapter 1 Flashcards
What is Biology
The study of life
What are the five qualities that constitute life?
- Growth, Evolution, and development
- Reproduction
- Organization
- Maintenance of internal constancy
- Energy use
What is growth?
A quantitative size or number.
What is development?
A change that has nothing to do with size
What is Evolution?
Change over time.
What are the 12 levels of life’s organizational hierarchy?
- Atom
- Molecule
- organelle
- cell
- tissue
- organ
- organ system
- organism
- population
- community
- ecosystem
- biosphere
What are emergent properties?
A new property that arises as you move through the hierarchy.
What are primary producers? (autotrophs)
They make their own food and energy
What are consumers? (Heterotrophs)
They get their energy by eating other things.
What is a decomposer?
A consumer that specializes in breaking down decaying matter.
What is Homeostasis?
Maintaining equilibrium. (or the same state)
What is asexual reproduction?
A form of reproduction when one organism is involved.
what is sexual reproduction
A form of reproduction when two organisms are involved
what are adaptations?
A trader characteristic that provides an advantage for an organism.
What is natural selection?
Nature picking out the best individuals. (mechanism of evolution)