The process that moves nutrients into the blood or lymph is
a. absorption.
b. assimilation.
c. digestion.
d. ingestion.
e. elimination.
A
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The membrane is permeable to protons.
a. true b. false
The sun's energy is produced by:
a. nuclear fission reactions. b. nuclear fusion reactions. c. electromagnetic radiation. d. ultraviolet radiation. e. infrared radiation.
The ______ of an outcome is calculated without any restrictions, such as by age or sex
a. Adjusted rates b. Cumulative incidence rate c. crude rate d. proportion
What is the oncogene that is most often mutated in human tumors and what does it encode?
a) the MYC gene, an RNA polymerase that transcribes mRNA encoding proteins needed for cell division b) the RAS gene, a DNA polymerase that replicates DNA for dividing cells c) the RAS gene, a GTP-binding protein that serves as an on-off switch for a key cell signaling pathway that controls cell proliferation d) the MYC gene, a protein kinase that enhances cell differentiation e) the RB gene, a GTP-binding protein that serves as an on-off switch for a key cell signaling pathway that controls cell proliferation