Biology Mod 0

Front 1

Biology definition

Back 1

study of the structure, function and development on living things

Front 2

Generalisations

Back 2

statements supported by evidence which generally apply (there can be contradictions)

Front 3

theories

Back 3

•develop from hypotheses/generalisations
•represent scientific evidence as it is know at present
•can change when new observations or evidence refutes the widely accepted idea of scientists

Front 4

models

Back 4

presentations of phenomena

Front 5

laws

Back 5

•develop when generalisations/theories can be applied to all known cases, without exception
•can be used to predict future phenomena

Front 6

Scientific method

Back 6

1. observations (anything detectable)
2. Inferences
3. Hypothesis (testable idea) A causes B
4. Predictions
5. Experiments
6. Collect & analyse data
7. Repeat

Front 7

Independent variable

Back 7

•is deliberately manipulated
• aka experimental variable
•eg. group A is different from group B because of the experimental variable

Front 8

Dependent variable

Back 8

•is the variable that changes as a response to the independent variable
• is what you measure and observe in the experiment
•aka responding variable

Front 9

controlled variables

Back 9

•those variables that are regulated and kept constant for the duration of the experiment

Front 10

Uncontrolled variables

Back 10

•are those factors which are not considered in the experimental design
•should not have any significant effect on the experiment

Front 11

sample size

Back 11

•larger the better as it increases the reliability of the outcome as it is an attempt to even out the individual variation that exists between the subjects