Chyme flows directly from the jejunum into the:a
duodenum.
b. stomach.
c. ileum.
d. esophagus.
e. rectum.
c
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Many human-infecting viruses that illicit a strong immune response cause additional harmful effects on humans, so the discovery of a virus that can induce an immune response but not cause harm made it attractive for vaccine development
Indicate whether the statement is true or false.
After DNA repair enzymes cut out part of a DNA strand that had an incorrect nucleotide, ____ is/are
needed to complete the repair.
a. primase, DNA polymerase, and DNA ligase b. DNA polymerase c. DNA polymerase and DNA ligase d. primase and DNA ligase e. primase and DNA polymerase
Which of the following allows water to move much faster across cell membranes?
A) the sodium-potassium pump B) ATP C) peripheral proteins D) aquaporins
Glycogen is a polysaccharide used for energy storage by ____.
A. animals B. plants C. protists D. bacteria E. archaea