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Chapter 1 What is Life Science?
Section 2: The Study of Life
Life Science: the study of living things
a.k.a.: biology — the study of life
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Chapter 1 What is Life Science?
Organism
a living thing
May be an animal, a plant, a fungus or a microbe
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Chapter 1 What is Life Science?
Branches of Life Science
Different fields of study often overlap.
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Chapter 1 What is Life Science?
Big Ideas in Life Science
1. Organisms are diverse, yet share similar characteristics
all organisms are made of cells (building blocks of life)
• Multicellular versus unicellular
• All organisms require energy
• All organisms grow and develop (process of change that causes an organism to become more complex during its lifetime)
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Chapter 1 What is Life Science?
Big Ideas in Life Science
2. Groups of organisms change over time
• evolution: gradual process of change that occurs in groups of organisms
• Evolution occurs over many, many generations
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Chapter 1 What is Life Science?
Big Ideas in Life Science
3. the structure and function of organisms are complementary
• the structure of an organism allows it to function
• Structure: way that an organism is put together as a whole
• function: process that enables an organism to survive
• Complementary: when structure and function work together to meet the needs of the organism
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Chapter 1 What is Life Science?
Big Ideas in Life Science
4. Organisms operate on the same physical principles as the rest of our natural world