Mathematical models are tested by comparing the predictions with?

[RichardJ]

A. observations
B. experimental data
C. scientific laws and theories
D. predictions of mental models
E. all of these answers


A feedback loop
A. affects the rate of change
B. may be positive or negative
C. has at least one storage area
D. all of these answers
E. none of these answers


A negative feedback loop keeping conditions stable is
A. homeostasis
B. a synergistic interaction
C. leverage
D. chaos
E. all of these answers



All of the following are elements except
A. water
B. oxygen
C. nitrogen
D. hydrogen
E. carbon