Introduction to Biology

From the study guide

Course Outline

  1. Biology and Its Major Themes
  2. Cellular Organization and Information
  3. Reproduction Evolution and Ecology
  4. Energy Matter and Nutrition
  5. Characteristics of Living Things
  6. Scientific Method and Evidence
  7. Microscopes and Measurement

1. Biology and Its Major Themes

Key Concepts & Definitions

  • Biology: the study of life and the science of living things

★ Must-know

  • Life arose more than 3.5 billion years ago, and the first organisms were single-celled.

  • The major themes of biology are:

    • cell structure and function
    • stability and homeostasis
    • reproduction and inheritance
    • evolution
    • interdependence of organisms
    • matter, energy, and organization

Further detail

  • The word biology comes from bios, meaning life, and logos, meaning study.

Memory Hook

Life themes: cells, stability, reproduction, evolution, interdependence, and energy

2. Cellular Organization and Information

Key Concepts & Definitions

  • Cell: the basic unit of life, and all organisms are made of and develop from cells

Essential Points

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Practice quiz preview

1. Which statement correctly distinguishes a cell from an organelle?

2. Which sequence correctly describes early life on Earth?

3. What does biology study?

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Flashcard preview

What is biology the study of?

Life and living things.

What are the major themes of biology?

Cell structure and function, stability and homeostasis, reproduction and inheritance, evolution, interdependence, and matter, energy, and organization.

What is the basic unit of life in all organisms?

A cell.

How are cells organized in multicellular organisms?

Cells form tissues, organs, systems, then the organism.

Biology: Target Label

Study of life and living things

Major bio themes

Cell structure, stability, reproduction, evolution, interdependence, energy

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Frequently asked questions

What does the Introduction to Biology study guide cover?

It covers the core concepts of Introduction to Biology, organized by topic with the key definitions, explanations and takeaways, so it's easier to learn and remember.

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How many questions are in the Introduction to Biology quiz?

The practice quiz has 11 multiple-choice questions, each with an explanation. Use it to check what you know and find your gaps.

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How do I study Introduction to Biology with flashcards?

There are 11 flashcards on Introduction to Biology, with a question on the front and the answer on the back. Try to recall each answer before you flip, and let spaced repetition bring back the ones you miss.

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