Study guide: The Study of Life

Course Outline

  1. Biology and Scientific Inquiry
  2. Scientific Reasoning
  3. Science in Practice
  4. Properties of Life
  5. Levels of Biological Organization
  6. Diversity of Life

1. Biology and Scientific Inquiry

Key Concepts & Definitions

  • Biology: The study of living organisms and their interactions with one another and their environments.
  • Science: Knowledge that covers general truths or the operation of general laws, especially when acquired and tested by the scientific method.

Essential Points

  • The natural sciences concern the physical world, its phenomena, and its processes, and scientific explanations are restricted to natural rather than supernatural causes.

2. Scientific Reasoning

Essential Points

📌 Inductive reasoning uses related observations to reach a general conclusion, whereas deductive reasoning uses a general principle or law to forecast specific results.

Memory Hook

Induction moves from observations to a general conclusion; deduction moves from a general law to specific results.

3. Science in Practice

Key Concepts & Definitions

  • Scientific method: A research method with defined steps that include experiments and careful observation.

★ Must-know

📌 Basic science seeks to expand knowledge regardless of its short-term application, whereas applied science aims to use science to solve immediate problems as defined by the researcher.

Further detail

📌 If experimental data do not support a hypothesis, a new hypothesis can be proposed.

  • Peer review is a blind process in which reviewers assess submitted experiments, results, and interpretations for their veracity and merit for publication.

  • Scientific papers typically follow this order:

    • Abstract
    • Introduction
    • Methods
    • Results
    • Discussion
    • Literature Cited

4. Properties of Life

Essential Points

  • The listed properties of life are:
    • order
    • sensitivity or response to stimuli
    • reproduction
    • growth and development
    • regulation
    • homeostasis
    • energy processing

5. Levels of Biological Organization

Essential Points

  • Biological organization proceeds through:
    • atoms
    • molecules
    • macromolecules
    • organelles
    • cells
    • tissues
    • organs and organ systems
    • organisms, populations, and communities
    • ecosystems
    • the biosphere

Memory Hook

Organization builds upward from atoms to the biosphere.

6. Diversity of Life

★ Must-know

  • Living organisms are divided into three domains: Bacteria, Archaea, and Eukarya.

Further detail

📌 Bacteria and Archaea are prokaryotes: single-celled organisms that lack intracellular organelles.

Test yourself

Take a 11-question practice quiz on The Study of Life, with every answer explained.

1. What makes scientific knowledge distinctively scientific?

2. A researcher notices that several plants exposed to less light grow more slowly, then concludes that reduced light generally slows plant growth. Which reasoning is being used?

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Study with flashcards

Memorize the key concepts of The Study of Life with 19 flashcards.

What does biology study?

Living organisms and their interactions with one another and their environments.

What is science?

Knowledge covering general truths or the operation of general laws, especially when acquired and tested by the scientific method.

How does inductive reasoning use related observations?

It uses them to reach a general conclusion.

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