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Questions and Answers
Which characteristic of life involves the ability to respond to changes in the environment?
Which characteristic of life involves the ability to respond to changes in the environment?
In the scientific method, which step directly follows the formulation of a hypothesis?
In the scientific method, which step directly follows the formulation of a hypothesis?
What distinguishes a control group from an experimental group?
What distinguishes a control group from an experimental group?
Which of the following is NOT a method for organizing data collected from research?
Which of the following is NOT a method for organizing data collected from research?
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In an experiment, which variable is manipulated by the researcher?
In an experiment, which variable is manipulated by the researcher?
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Study Notes
Unit 1: Introduction to Biology
- Biology is the study of life, from the simplest (unicellular) to the most complex (multicellular) forms.
Characteristics of Life
- All living things share seven characteristics:
- Made up of cells (unicellular or multicellular)
- Grow and develop
- Acquire and use energy
- Reproduce
- Maintain homeostasis
- Respond to stimuli
- Evolve as a population
Scientific Method
- The scientific method involves these steps:
- Identify a problem or question
- Conduct background research
- Formulate a hypothesis
- Design and conduct an experiment
- Collect data
- Analyze the data
- Draw conclusions
- (Optional) Peer review.
Variables in Experiments
- Independent variable: The factor intentionally changed in the experiment's setup
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Dependent variable: The factor measured as a result of the change in the independent variable.
- This can be quantitative (numerical data) or qualitative (descriptive data).
Control vs. Experimental Groups
- A control group does not receive the treatment or change being tested. It is used for comparison to see if a treatment had an effect
- An experimental group receives the treatment or change being tested
Data Organization
- Data can be organized in various ways:
- Bar graphs
- Line graphs
- Scatter plots
- Pie charts
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Description
This quiz covers the fundamentals of Biology, including the characteristics of life, the scientific method, and the variables used in experiments. Understand the concepts that define living organisms and the methods scientists use to study them.
