The critical period is
A) the time during which a sperm can fertilize an oocyte.
B) the time during which an embryo can implant in the uterine lining.
C) the time during development when structures are sensitive to damage from a mutation, toxin, or virus.
D) the labor period.
C) the time during development when structures are sensitive to damage from a mutation, toxin, or virus.
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The correct functions of your lungs contribute to the normal pH level of between 7.35 and 7.45. If your lungs do not exchange and remove carbon dioxide from your blood, the blood pH will change. A pH 6.4 reading of your blood indicates
A. a health problem due to the pH value being 10X higher OH- concentrations than normal in your body.
B. a health problem due to the pH value being 2X higher OH- concentrations than normal in your body.
C. a health problem due to the pH value being 2X higher H+ concentrations than normal in your body.
D. no health risk, as part of normal pH changes in your body that in this case bring it closer to neutral pH.
E. a health problem due to the pH value being 10X higher H+ concentrations than normal in your body.
3 types of functional classes
What will be an ideal response?
The inability of T and B cells to recognize the body’s MHC markers as foreign is known as ____
a. immunological tolerance b. immune intolerance c. immune surveillance d. immunity bias e. autoimmunity
Present a general definition for a multigene family and how it relates to a superfamily
What will be an ideal response?