describe the locomotion of a leech on land

One of the easiest ways that companies can avoid animal testing is to work with products that are actually extensively utilized in human history and still have proven their safety after a while. Companies also can depend on data from natural and synthetic substances that are already previously tested on animals. Computer modeling and databases may be used to determine biological properties of ingredients making risk assessments. The proper strategy of balance climbing requires the following: v Eyes. As a climber, you should view the entire route selected to climb. Use your eyes to climb the pitch. You should identify handholds and footholds, possible belay positions, alternate routes, rest spots, plus a route for down climbing or descending. You must make use of your eyes continuously to look for subsequent handholds and footholds, and rest positions. As well as to continue planning and revision from the route. v Body Position. As you move and climb, the body must be in balance; that is, unwanted weight has to be centred over your feet. Use your hands mainly for balance, and you weight together with your legs.