Scientific Method
May be revised or replaced
What is a theory?
When working in a laboratory, in the field, or with animals
When are safety procedures important?
A controlled experiment allows the scientist to isolate and test this
What is a single variable?
The ability to move
What is not a characteristic of ALL living things?
Population
What is the term for a group of organisms of one type living in the same place?
Must be proposed in a way that enables them to be tested
What are hypotheses?
Ounce (oz)
What is NOT a unit of measurement in the International System of Units, or SI?
Compound light microscope
What is an instrument that allows light to pass through the specimen and uses two lenses to form an image?
To use data to support a particular point of view
What is NOT a goal of science?
Centrifuge
What is an instrument used to separate cell parts according to density?
Careful observations
What does the work of a scientist begin with?
If in doubt about any part of an activity, trust your instincts.
What is NOT a safety procedure?
Compound light microscope
Biologist
What term includes botanist, ethologist, zoologist, among others?
Homeostasis
What is the process by which organisms keep their internal condition fairly constant?
The first applies to a well-tested explanation that unifies a broad range of observations; the second is a possible explanation for a set of observations
What is the difference between a theory and a hypothesis?
Cell culture
What is the term given to a group of cells that develop from a single original cell?
Lab Station 1
Which lab station had the microscope with the slide on it?
Movement
What is NOT a characteristic of ALL living things?
Tissues, organs, and organ systems
What structures are included in the level of organization called groups of cells?
Living things
What is biology the study of?
Cell fractionation
What is a technique used to separate the different cell parts?
The first produces images by focusing visible light rays, whereas the second produces images by focusing beams of electrons
What is the difference between light microscopes and electron microscopes?
Molecules, cells, groups of cells, organism, population, community, ecosystem, biosphere
What are the levels of organization that biologists study?
A proposed scientific explanation for a set of observations
What is a hypothesis?