Of the chemicals that fall under the tsca % have been tested for toxicity and have been tested for endocrine, nervous, or immune system damage.

10; 2%

Of the chemicals that fall under the TSCA 10% have been tested for toxicity and 2% have been tested for endocrine, nervous, or immune system damage.

The Toxic Substances Control Act (TSCA) is a law issued by the United States Congress and used by the Environmental Protection Agency (EPA) to demand for documentation and testing requirements, and restrictions associated with chemical substances. Other substances such as foods and drugs are mainly removed from TSCA.

stimulus is a change in the environment that causes an organism to react. the response is the reaction to the stimulus. some examples of stimuli for zebras are drought, to many predators, and bad feeding grounds such as dead grass or plants. zebras respond to stimuli just like all other living organisms