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Questions and Answers
What unifies biology as a single, coherent field?
What unifies biology as a single, coherent field?
- The regulation of internal environments
- The presence of cells and hereditary information (correct)
- The use of the scientific method
- The study of anatomy and physiology
Which theme explains the unity and diversity of life?
Which theme explains the unity and diversity of life?
- Regulation of internal environments
- Evolution (correct)
- Energy processing
- Cellular organization
What allows organisms to move, grow, and reproduce?
What allows organisms to move, grow, and reproduce?
- Hereditary information
- Regulation of internal environments
- Energy processing (correct)
- Cellular organization
At what levels of organization do biologists study life?
At what levels of organization do biologists study life?
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How are subdisciplines within biology defined?
How are subdisciplines within biology defined?
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Study Notes
Unity and Diversity of Life
- The unifying theme of biology is the concept of evolution, which explains the unity and diversity of life.
- Evolution links all living organisms, from the simplest bacteria to complex organisms, into a single, coherent field.
Characteristics of Life
- The ability to move, grow, and reproduce are essential characteristics of life.
- These fundamental processes are made possible by the cell, the basic structural and functional unit of life.
Levels of Organization
- Biologists study life at multiple levels of organization, including:
- Molecules (e.g., DNA, proteins)
- Cells
- Organ systems (e.g., nervous, circulatory)
- Organisms
- Populations
- Communities
- Ecosystems
- Biosphere
Subdisciplines of Biology
- Subdisciplines within biology are defined by the level of organization, the types of organisms studied, or the research methods used.
- Examples of subdisciplines include:
- Molecular biology (study of biological molecules)
- Ecology (study of interactions between organisms and their environment)
- Botany (study of plants)
- Zoology (study of animals)
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