natural selection Flashcards
(8 cards)
1
Q
what affects the validity of an experiment
A
personal error
2
Q
what affects the accuracy
of an experiment
A
systematic error
3
Q
what is an independent variable
A
a variable that is controlled by the researcher to test its effect on the dependent variable
4
Q
what is a dependent variable
A
a variable that is measured to determine the changes in the independent variable
5
Q
what is a controlled variable
A
element kept constant
6
Q
what is a structural adaptation
A
a physical characteristic (e.g. fur colour)
7
Q
what is a behavioural adaptation
A
how one acts (e.g. finding shade when hot)
8
Q
what is a physiological adaptation
A
ones internal systems (e.g. cresting venom)
