The cowper's gland secretes what?
What will be an ideal response?
Answer: lubricant
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When Avery and McCarty were attempting to identify the substance involved transferring hereditary material, they tested the ability of a bacterial S cell extract to transform R cells after different components of the extract were degraded by enzymes. Which treatment inhibited the ability of the S cell extract to transform R cells?
a. DNAse degrading enzymes b. RNAse degrading enzymes c. protein degrading enzymes d. lipid degrading enzymes e. amino acid degrading enzymes
Choanoflagellate adhesion proteins are similar to those of animals, and researchers have discovered that even solitary choanoflagellates have these proteins. What is the current hypothesis about the relation between the choanoflagellate adhesion proteins and animal adhesion proteins?
What will be an ideal response?
Blanks “A” and “B” should be labeled respectively
a. does not drink; loss b. does not drink; gain c. drinks; loss d. drinks; gain e. none of these
Plants having naked seeds out in the open are
A. gymnosperms. B. annuals. C. angiosperms. D. flowering.