ENVT

1.     Define toxicology.

2.     Define environmental toxicology.

3.     What is the difference between environmental toxicology and ecotoxicology?

4.     What knowledge can be gained from dose-response relationships?

5.     Why are the shape and slope of a dose-response curve important?

6.     What role do shape and slope play in environmental toxicology?

7.     Explain LD₅₀.

8.     Explain LD₁₀.

Review the following chart and answer the following questions:

1.     Based on LD₁₀, which toxicant is more potent? Why?

2.     Based on LD₅₀, which toxicant is more potent? Why?

3.     At what dose do these toxicants have the same percentage lethality?

Toxicology Chart