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43 terms

Mrs. Rudiger's Biology Chp. 1 Melissa Holmes

STUDY
PLAY
Biology
The study of life.
Research diseases, develop technologies, and preserve the environment.
What do Biologists do?
Organism
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.
Homeostasis
Regulation of an organism's interval condition to maintain life.
Organization
Arranged in an orderly way
Tissues
Specialized cells are organized into groups that work together called _____.
Organs
Tissues are organized into ______.
Organism
Organ systems work together to support an ______.
Growth
Addition of mass to an organism & the formation of new cells & structures.
Development
All of the changes that take place during the life of an organism.
Reproduction
_______ isn't essential for survival of an individual, but is essential for the continuation of the species.
Species
Group of organisms that can breed w/ one another & produce fertile offspring.
Stimulus
Anything that is part of the internal or external environments and causes a reaction by the organism.
Response
Reaction to a stimulus
Food.
Living things get their energy from _____.
Adaptation.
Any inherited characteristic that results from changes to a species over time.
Science
Body of knowledge based on the study of nature.
Peer review
Scientists undergo _____ before their experiments are made public.
Peer review
Process by which the procedures and results of an experiment are evaluated by other scientists in the same field.
Theory.
An explanation of a natural phenomenon supported by many observations & experiments over time.
Scientific Law
Describes relationship under certain conditions in nature, but doesn't explain why the relationship is the way it is. They never change.
Ethical
_____ issues must be addressed by society based on the values we hold important.
Ethics
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
Hypothesis
Testable explanation of the situation
Control group
A group used for comparison in an experiment.
Experimental group
A group exposed to the factor being tested.
Ind. Variable
Only one factor in a controlled experiment can change @ a time; Factor being tested
Dep. Variable
Results from or depends on changes to the ind. variable.
Data
Info. gained from observations
Quantitative
________ data can be measured by time, length, temp, mass, area, volume, and density. (numerical)
Qualitative
________ data are descriptions of what our senses detects.
Metric System
Uses units w/ divisions that are powers of 10
Meter
S.I. Unit of length
Gram
S.I. Unit of mass
Liter
S.I. Unit of Volume
Seconds
S.I. Unit of time
Application
New use to which results are put or new technique updated.
1,000 and K
Kilo
.1 and D
Deci
.01 and C
Centi
.001 and M
Milli