Toxicology is the study of toxin effects on human health. The individuals or professionals who carry out toxicology are called toxicologists. In toxicity testing, the dose of a chemical above which there is a measurable decline in the health of the organism being tested is referred to as the toxicity threshold. After identifying the effects and the toxins in the body of an organisms toxicologists device ways of removing or neutralizing the toxin so as to avoid any damaging effects to the body tissues.
Answer: temperature
Explanation:
A limiting factor is the one which is capable of limiting the growth, distribution and abundance of the population of the species. A density independent limiting factor is the one whose influence on the population remains unaffected by the density of the population. It will cause the per capita growth rate to change. Temperature is a density independent factor because the temperature of an area can vary. It is an abiotic (non-living component) of the ecosystem. It's effect does not dependent upon the density of the population.