Finals Honors Biology (Chapter 1)

What is science? Biology?
Science is an organized way of analyzing evidence about the natural world. Biology is the study of life.
Why study science? What is the goal of science?
One goal of science is to provide natural explanations for events in the natural world. Science also aims to use those explanations to understand patterns in the natural world to make useful predictions about natural events.
Hypothesis- define and recognize a scientific hypothesis.
A scientific explanation for a set of observations that can be tested in ways that support of reject it.
Controlled experiments:
-Steps we normally take when conducting a controlled experiment
-Types of variables and how many of each there should be
Examples or variables: temperature, light, time, and availability of nutrients
A hypothesis should only be tested by an experiment in which only one variable is changed. All other variables should be kept unchanged, or controlled.
Explain and differentiate theories and laws.
Theory- In science, the word theory applies to a well-tested explanation the unifies a broad range of observations and hypotheses and that enables scientists to make accurate predictions about new situations.
Law- States a repeated observation about nature
List and describe the characteristics of living things.
Living things have:
-Based on a universal genetic code (DNA)
-Grow and develop
-Respond to their environment
-Made up of cells
-Reproduce
-Maintain a stable internal environment
-Obtain and use material and energy
-Evolve
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What role does science play in the study of life?
Science is everything.
What are the “Big Ideas” of Biology?
-Cellular Basis of Life -Evolution
-Information and Heredity -Structure and Function
-Matter and Energy -Unity and Diversity of Life
-Growth, Development, and Reproduction
-Homeostasis -Interdependence in Nature
-Science as a Way of Knowing