Multiple Choice
In toxicology studies,the threshold level of a chemical is the dose of the chemical_________ .
A) above which at least 50% of the organisms being tested died
B) above which there is a measurable decline in the health of the organism being tested
C) below which at least 50% of the organisms being tested died
D) below which there is a measurable decline in the health of the organism being tested
Correct Answer:

Verified
Correct Answer:
Verified
Q25: How might global climate change cause an
Q26: Exposure to_ radiation can cause cancer.<br>A)X-ray<br>B)beta<br>C)alpha<br>D)All of
Q27: Toxicology is the study of_ .<br>A)intoxication of
Q29: Concerned about the exposure of children to
Q31: Metals such as arsenic can quickly move
Q32: Carcinogens may be difficult to identify and
Q33: Hazardous chemicals that are endocrine disruptors cause
Q34: Which of the following is an ecosystem
Q35: _is transmitted by an insect.<br>A)Malaria<br>B)Cholera<br>C)H1N1<br>D)Ebola
Q37: What does the field of environmental health