Refer to the paragraph on the effects of estrogens in the environment. What is the significance of using the concentrations of 5, 25, and 100 ng/l of 17?-estradiol for the dose in this experiment?
A) These concentrations are similar to those found in many animals.
B) These concentrations are found in the environment.
C) These concentrations are effective, yet not lethal to the fish.
D) These concentrations are standard in toxicology assays.
B
You might also like to view...
During replication, which enzyme unwinds the DNA double helix?
A. DNA primase B. DNA polymerase I C. DNA helicase D. DNA gyrase E. DNA ligase
In plants, the light-dependent reactions require
A. NADP+. B. ATP. C. Calvin cycle enzymes. D. glucose. E. O2.
Modern humans show a type I survivorship curve.
Answer the following statement true (T) or false (F)
Which of the following environments or actions would NOT affect the rate of an enzyme reaction
a. substrate concentration b. heating the enzyme c. pH d. cooling the enzyme e. None of the listed responses is correct