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Questions and Answers
What is a unifying theme in biology that explains the unity and diversity of life?
What is a unifying theme in biology that explains the unity and diversity of life?
- Regulation of internal environments
- Cellular structure
- Energy processing
- Evolution (correct)
What is the fundamental unit that all organisms are made up of?
What is the fundamental unit that all organisms are made up of?
- Tissues
- Cells (correct)
- Organs
- Organ systems
What is the main process that allows organisms to move, grow, and reproduce?
What is the main process that allows organisms to move, grow, and reproduce?
- Energy processing (correct)
- Respiration
- Photosynthesis
- Cell division
What scientific method do biologists use to make observations and form conclusions?
What scientific method do biologists use to make observations and form conclusions?
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What is the approximate age of life on Earth as mentioned in the text?
What is the approximate age of life on Earth as mentioned in the text?
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Study Notes
Unifying Theme in Biology
- Evolution acts as a unifying theme, explaining both the diversity of life through adaptations and the unity of all living organisms through common ancestry.
Fundamental Unit of Life
- Cells are the fundamental units that compose all living organisms, serving as the basic structure and functional units of life.
Main Processes for Organisms
- Metabolism encompasses the processes that enable organisms to move, grow, and reproduce, including both anabolic and catabolic reactions.
Scientific Method in Biology
- Biologists employ the scientific method to systematically make observations, form hypotheses, conduct experiments, and draw conclusions based on empirical evidence.
Age of Life on Earth
- Life on Earth is approximately 3.5 billion years old, suggesting a long history of biological evolution and diversity.
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