Define toxicology, Define toxicology. Define environmental

Define toxicology

Reference no: EM13822437

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

Dose	Toxicant A	Toxicant B
mg/kg	% lethality	% lethality
0.01	20	25
0.05	25	30
0.1	30	35
0.5	40	40
1	45	50
5	55	65
10	60	70
50	70	85
100	75	95
500	95	105
1,000	100	107
5,000	105	108
10,000	107	109

Reference no: EM13822437

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