A researcher has hypothesized that the chemical tributyltin (an additive in boat paint) seeps into the water causing reproductive defects in developing marine snails
In an experiment testing the effects of tributyltin on developing snails, which condition should be used as a control? A) Developing snails are kept in a tank of water and exposed to below-expected levels of tributyltin.
B) Developing snails are kept in a tank of water and exposed to boat paint without tributyltin.
C) Developing snails are kept in a dry tank to avoid exposure to contaminated water.
D) Developing snails are kept in a tank of water that has been cleaned with chlorine bleach.
B
You might also like to view...
Which of the following traits is characteristic of a K-selected species?
a. adapted to rapidly changing environments b. small body size c. short generation time d. provide substantial parental care to offspring e. single reproductive event common
Leaching is caused by
a. bacterial action. b. wind. c. water. d. microbial activity. e. none of these.
A(n) ________ individual has the same alleles at the same locus on homologous chromosomes
Fill in the blank(s) with correct word
Explain the structural differences between the thick and thin myofilaments.
What will be an ideal response?