Chapter 1 Flashcards
What does biology study?
Organs and history of life, where things come from. Structures of living things. How things function. How they interact with each other. Diversity of life. Preserving the environment. Research diseases. Develop technologies. Improve agriculture.
What are the 8 characteristics of life?
- Made of one or more cells
- Displays growth
- Development
- Reproduces
- Responds to stimuli
- Requires energy
- Maintains homeostasis
- Adaptations evolve over time
Unicellular organisms
Bacteria, protist
Multicellular organisms
Fungus, plants, animals
Asexual
Clone, double, one organism
Sexual
Takes 2, new product
Species
Different species have different chromosomes, genes
Respiration
Consumers (animals, fungus, protist, bacteria)
Photosynthesis
Producers (plants, protist, bacteria)
Maintains homeostasis
Maintains internal conditions, metabolism controls it
What are the organization levels? (6)
- Chemical Level
- Cells
- Tissues
- Organs
- Organ system
- Organism
Science
Answering questions, research, learning information about the natural world
What is science driven by?
Curiosity
Scientific inquiry
Asking questions to satisfy our curiosity, unbiased
What expands scientific knowledge?
Reevaluation, checks and rechecks
Scientific theory
Explanation of something of large scale, based on facts
Peer review
When an experiment is evaluated by other scientists who are in the same field
What does it mean to be scientifically literate?
To be able to ask, find, or determine answers to a question
Scientific method
- Ask a question
- Make a hypothesis
- Test hypothesis
- Analysis
- Conclusion
- Retest
hypothesis
Educated guess
Experimental group
Testing the hypothesis, the one being tested
Control group
Comparison to the experimental group
Independent variable
The one thing that is different between the control and experimental procedure
Dependent variable
Depends on the independent, the data
