Ecology Toxicology - Short Answers Name Ecological Toxicology ESM 420/520 Midter

Question

Ecology Toxicology - Short Answers

Name Ecological Toxicology ESM 420/520 Midterm Exam October 18, 2017 (50 pts) Given the data in Graph A which species would be more susceptible to cadmium toxicity and why? Using the information from Graph A which species do you think would be represented by line 1 and line 2 in Graph B? What is the LC50 for species A and B? (10 pts) 5. Graph A 60 50 30 20 g 10 0 10 50 100 Cadmium (ug/L) -*-Species A -Species B Graph B 120 100 2 80 o 60 40 20 0 10 50 100 Cadmium (ug/L) -Line 1 -Line 2

Explanation / Answer

LC50 is Lethal concentration of material i.e concentration with which 50% of test indiciduals die

here for species A, LC50 is 1 ug/L as mortality at that concentration is 50% i.e 50 out of 100 individuals of that species dies at that concentration.

For species B, LC50 is 50 ug/L as mortality at that concentration is 50% i.e 50 out of 100 individuals of that species dies at that concentration.

Related Questions

Navigate

• Browse (All)
• Browse E
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.