All of the following are either structures or characteristics of members of the Class Bivalvia of the Phylum Mollusca except
A. open circulation.
B. a radula.
C. the mantle.
D. gills.
E. a shell.
Answer: B
You might also like to view...
Most flowers are pollinated by which method?
a. wind b. birds c. bats d. water e. insects
Of the following, which would be predicted to grow at the slowest rate?
a. yeasts b. lichens c. sac fungi d. mushrooms e. bread molds
The FtsZ protein is present in prokaryotes and in chloroplasts. The protein is structurally and functionally similar to tubulin proteins of eukaryotic cells. Which of the following is a likely conclusion to draw from this information?
(A) FtsZ and tubulin proteins were both present in a common ancestor. (B) Microtubules are involved in the mechanics of photosynthesis. (C) Tubulin genes are evolutionarily derived from the gene that codes for the FtsZ protein. (D) The sequences of the genes encoding the FtsZ and tubulin proteins are identical.
What is the counterstain used in acid fast staining?
What will be an ideal response?