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Introduction to Biology

Introduction to Biology. Big Ideas in Biology. Big Idea #1 – Hierarchy of Organization. All living organisms follow a hierarchy of organization. Using your textbook as a guide, define and give and example of the following: Biosphere - Ecosystem Community - Population

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Introduction to Biology

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  1. Introduction to Biology Big Ideas in Biology

  2. Big Idea #1 – Hierarchy of Organization • All living organisms follow a hierarchy of organization. • Using your textbook as a guide, define and give and example of the following: • Biosphere - Ecosystem • Community - Population • Organism - Organ System • Organ - Tissue • Cell - Organelle • Molecule

  3. Big Idea #1 – Hierarchy of Organization • In your notebook, using an example not found in your text, sketch two examples of hierarchical organization.

  4. Big Idea #2 – Interaction and Exchange of Matter and Energy • There is a fragile balance between organisms and their environment. • Producers are the base of the food pyramid • Consumers process the nutrients taken from the producers • Decomposers recycle the matter to be taken back by the producers.

  5. Big Idea #2 – Interaction and Exchange of Matter and Energy • Read page 3 in your textbook • Is all the energy used by the organism? • How is the energy taken in by an organism divided? • Find a diagram of the Carbon Cycle. Describe how photosynthesis and cellular respiration function in the cycling of nutrients and energy.

  6. Big Idea #3 – Cells are the Structural and Functional Units of Life • Define Structure and Function. • Contrast an epithelial cell of a human to a skeletal muscle cell, using structure and function as a guide. • Compare and contrast a prokaryotic and eukaryotic cell.

  7. Big Idea #4 – Evolution and Classification (The Unity of Life) • All cells have DNA, and use this molecule to form genes, the genetic blueprint of organisms to transmit information from parents to offspring • The genetic code is universal. What does this mean? • What properties are common to all organisms?

  8. Big Idea #4 – Evolution and Classification (The Unity of Life) • Grouping of Organisms is very important to look at common features, to define a species and to look at evolutionary paths (Cladistics) • What are the three main domains? • Compare and contrast the kingdoms Plantae, Animalia and Fungi. • (More on this in Evolution)

  9. Big Idea #4 – Evolution and Classification (The Unity of Life) • Evolution explains the unity and diversity of life. • Define Evolution. • Define Natural Selection • In class, Examples of Natural Selection • Pocket Mouse Predation • Butterflies

  10. The Process of Science • Two Approaches to Learning • Discovery Science • Hypothesis-Based Science • What is the difference between the two? • In which situation would one approach be more acceptable than the other?

  11. Theories in Science • What are some significant theories in Science? • What is a theory? • Read the case study in the text.

  12. Precautionary Principle • What is the precautionary principle? • Give an example of using the precautionary principle. • Why is this an approach used in society with regards to legislation? • Why does this approach help and hinder science?

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