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100
What is science?
An organized way of gathering and analyzing evidence about the natural world.
100
What are the central themes of biology?
The cellular basis of life; information and heredity; matter and energy; growth, development, and reproduction;
100
What is ecology?
scientific study among organisms and between organisms and their physical environment.
100
What is weather?
the condition of Earth´s atmosphere at a particular time and place.
200
Why is peer review important?
Publishing peer-reviewed articles in scientific journals allows researchers to share ideas and to test and evaluate each other's work.
200
Suppose you discover a new organism. What would you expect to see if you studied it under a microscope?
If I discovered a new organism, and looked at it through a microscope, then I would probably find its cells.
200
What methods are used in ecological studies?
-Observation -Experimentation -Modeling
200
What is climate?
the average condition of temperature and precipitation in a region over long periods.
300
What's a controlled experiment ?
A type of experiment where only 1 variable is changed, but all the other variables should be kept unchanged, or controlled
300
At what levels do biologists study life?
Biologists study life from the level of molecules to the entire planet.
300
They are chemical substances that an organism needs to sustain life:
Nutrients
300
Explain 1 factor that affect climate.
Answer vary; May be "greenhouse effect: trapping of heat by gases in the atmosphere", "Eath´s corvature: because of Earth´s corvature, sometimes this causes that different latitudes to receive less or more intense solar energy", or "Unequal heating: this causes winds and ocean currents, winds and currents move heat and moisture through the biosphere
400
What is the relationship between science and society?
Using science involves understanding its context in society and its limitations.
400
How do different fields of biology differ in their approach to studying life?
Biology includes many overlapping fields that use different tools to study life from the level of molecules to the entire planet.
400
How does energy flows through ecosystems?
Energy flows through an ecosystem in a 1-way stream, from primary producers to various consumers.
400
What are the 3 factors that affect climate?
Greenhouse effect, Earth´s corvature, and unequal heating of Earth´s surface.
500
List the characteristics that define life.
basic units called cells, are based on a universal genetic code, obtain and use materials and energy, grow and develop, reproduce, respond to their environment, maintain a stable internal environment, and change over time
500
Why do scientists use a common system of measurement?
Scientists use a common system of measurement because they need to replicate one another's experiments.
500
They are the closed loops that allow elements to pass from 1 organism to another and among parts of the biosphere, which are powered by the flow of energy:
Biogeochemical Cycles
500
What produces microclimates?
Microclimates are produced by some climate variations (over short distances).