Imagine that you have been miniaturized and are riding through the circulatory system using a red blood cell as a life raft. You are nearly deafened by the first heart sound, which is caused by __________.
Fill in the blank(s) with the appropriate word(s).
Ans: the closing of the atrioventricular valves
Biology & Microbiology
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How is the leucine zipper formed, and what is its function?
What will be an ideal response?
Biology & Microbiology
Which of the following terms describes gene regulation that occurs by rendering a protein non-functional?
a. epigenetic level of regulation b. post-transcriptional level of regulation c. translational level of regulation d. post-translational level of regulation
Biology & Microbiology
Modern cladists feel which of these organisms is different enough from the others that they should be placed in a different group?
A. snake B. lizards C. crocodiles D. all of the choices should be placed in the same group or taxon.
Biology & Microbiology