In the public elementary and high schools or in public elementary and high school school-sponsored activities and classes held elsewhere than on school premises, live vertebrate animals shall not, as part of a scientific experiment or any purpose whatever:

1. (a) Be experimentally medicated or drugged in a manner to cause painful reactions or induce painful or lethal pathological conditions.

2. (b) Be injured through any other treatments, including, but not limited to, anesthetization or electric shock.

   Live animals on the premises of a public elementary or high school shall be housed and cared for in a humane and safe manner.

   The provisions of this section are not intended to prohibit or constrain vocational instruction in the normal practices of animal husbandry.