When your child starts to lose his or her baby teeth, reinforce the importance of proper dental care. For example: 1  Remind your child to brush his or her teeth at least twice a day. 2  Supervise and offer assistance as needed. 3  Help your child floss his or her teeth daily. 4  Eat a healthy diet and limit between-meal snacks.
1 Unusual or excessive frugality; extreme economy or stinginess. 2  Adoption of the simplest assumption in the formulation of a theory or in the interpretation of data, especially in accordance with the rule of Ockham's razor.
Phylogenetic systematics, a.k.a. evolutionary trees : Reconstructing trees: Parsimony. We just mentioned that the principle of parsimony is often useful in reconstructing evolutionary trees.ypothesis 1 requires six evolutionary changes and Hypothesis 2 requires seven evolutionary changes, with a bony skeleton evolving independently, twice. Although both fit the available data, the parsimony principle says that Hypothesis 1 is better  since it does not hypothesize unnecessarily complicated changes.