1 If you're under 16, it can helpful to bring along a parent or guardian for the initial interview with the people seeking babysitting. 2  This reassures the other parents that your own parents are invested in your success and that you mean business, and it also protects you.
Evolutionary biology. Fitness (often denoted w {\displaystyle w} or Ï in population genetics models) is the quantitative representation of natural and sexual selection within evolutionary biology. It can be defined either with respect to a genotype or to a phenotype in a given environment.
However, exercise scientists have identified nine components that comprise the definition of fitness (Tancred 1995) : 1  Strength-the extent to which muscles can exert force by contracting against resistance (e.g. holding or restraining an object or person).otor Fitness refers to the ability of an athlete to perform successfully at their sport. The components of motor fitness are (Davis 2000) : 1  Agility. 2  Balance. 3  Co-ordination. 4  Power (speed & strength).