The organs of excretion in flatworms are
a. nephridia.
b. contractile vacuoles.
c. Malpighian tubules.
d. flame cells.
e. book lungs.
Answer: d
You might also like to view...
Organisms are composed of molecules, which are collections of smaller units, termed:
A. monomers. B. atoms. C. electrons. D. polymers. E. ions.
The theoretical maximum net gain of ATP per molecule of glucose metabolized aerobically in eukaryotes is
A. 2. B. 85. C. 32. D. 38.
Which of the following would result in a decrease in the size of your ecological footprint?
A. purchasing produce from local farmers instead of produce shipped from overseas B. constructing a new home from brick and stone C. setting the thermostat to 68 degrees in the winter instead of 66 degrees D. only purchasing clothing that was made overseas E. None of the answer options are correct.
In the Hardy-Weinberg formula, what does p2 represent?
A) frequency of the dominant allele B) frequency of heterozygotes C) frequency of the recessive allele D) frequency of the homozygotes for one allele