Review Chapter 1 - The Science of Biology Flashcards
What is science?
An organized way of using evidence to learn about the natural world
What are the 3 goals of science?
- ) To investigate & understand the natural world
- ) To explain events in the natural world
- ) To make useful predictions from those explanations
What are the steps of the scientific method?
Observation, Question, Hypothesis, Plan an experiment, Collect & analyze data, and Draw conclusions
Quantitative data is _______.
Numerical
Qualitative data is _______.
Characteristics (The 5 senses)
An observation is a(n) _______.
Fact
An inference is a(n) _________.
Conclusion based on facts with the addition of logic and or reason.
The deliberately changed variable in an experiment is the ___________.
Independent of manipulated variable
The variable that is observed is the __________.
Dependent or responding variable
The variable that changes in response to the manipulated variable is the ______.
Dependent or responding variable
What is a standard for comparison in a scientific experiment?
A control
Quantities that don’t change during a controlled test of the hypothesis are called _______.
Constants
A _______ experiment is an experiment in which only one variable is changed at a time.
Controlled or scientific
A proposed scientific explanation for a set of observations is called a ______.
Hypothesis
Spontaneous generation is __________.
The idea that life could arise form nonliving matter
Name 4 scientists that studied spontaneous generation.
Redi, Spallanzani, Needham, & Pasteur
Describe Pasteur’s experiment.
He had a curved-necked glass that allowed in air, but not microorganisms, and none appeared until, after a year, he broke off the necks.
Describe Redi’s experiment.
He had covered & uncovered jars with meat & counted the maggots.
Describe Spallanzani’s experiment.
He heated a flask of gravy (longer than Needham) and sealed it. No microorganisms grew.
Describe Needham’s experiment.
He heated gravy and sealed it, but there were still microorganisms. He didn’t heat it enough.
What is the name for a hypothesis that has been tested and supported many times?
Theory
Name the 8 characteristics of living things.
- ) Made of cells
- ) Change over time
- ) Reproduce
- ) Respond to their surroundings
- ) Are based on a universal genetic code
- ) Grow & develop
- ) Obtain and use materials and energy
- ) Work towards and maintain homeostasis
Name the 10 themes of biology.
- ) Homeostasis
- ) Science as a way of knowing
- ) Interdependence in nature
- ) Matter & energy
- ) Cellular basis of life
- ) Information & heredity
- ) Unity & diversity of life
- ) Evolution
- ) Structure & function
- ) Science, technology, & society
Botany
Plants