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Mrs. Rudiger's Biology Chp. 1 Melissa Holmes
The study of life.
Research diseases, develop technologies, and preserve the environment.
What do Biologists do?
Anything that has all the characteristics of life.
1)Made of one or more cells 2.Displays organization 3.Grows and Develops 4.Reproduces 5.Responds to stimuli 6. Requires energy 7.Maintains homeostasis 8. Adaptions evolve over time.
8 characteristics of organisms.
Regulation of an organism's interval condition to maintain life.
Arranged in an orderly way
Specialized cells are organized into groups that work together called _____.
Tissues are organized into ______.
Organ systems work together to support an ______.
Addition of mass to an organism & the formation of new cells & structures.
All of the changes that take place during the life of an organism.
_______ isn't essential for survival of an individual, but is essential for the continuation of the species.
Group of organisms that can breed w/ one another & produce fertile offspring.
Anything that is part of the internal or external environments and causes a reaction by the organism.
Reaction to a stimulus
Living things get their energy from _____.
Any inherited characteristic that results from changes to a species over time.
Body of knowledge based on the study of nature.
Scientists undergo _____ before their experiments are made public.
Process by which the procedures and results of an experiment are evaluated by other scientists in the same field.
An explanation of a natural phenomenon supported by many observations & experiments over time.
Describes relationship under certain conditions in nature, but doesn't explain why the relationship is the way it is. They never change.
_____ issues must be addressed by society based on the values we hold important.
Morals & values held by humans.
1) Ask a question 2. Form a hypothesis 3. Conduct an experiment to get data 4. Analyze Data 5. Report conclusions
5 Methods of Science
Testable explanation of the situation
A group used for comparison in an experiment.
A group exposed to the factor being tested.
Only one factor in a controlled experiment can change @ a time; Factor being tested
Results from or depends on changes to the ind. variable.
Info. gained from observations
________ data can be measured by time, length, temp, mass, area, volume, and density. (numerical)
________ data are descriptions of what our senses detects.
Uses units w/ divisions that are powers of 10
S.I. Unit of length
S.I. Unit of mass
S.I. Unit of Volume
S.I. Unit of time
New use to which results are put or new technique updated.
1,000 and K
.1 and D
.01 and C
.001 and M