Describe how you would care for and put away your compound light microscope at the end of the laboratory period
What will be an ideal response?
Turn off light source. Rotate objective so that lowest-power objective is in light path. Remove slide from stage. Clean all lenses with lens tissue. Fold power cord onto itself and secure with rubber band or plastic strap. If supplied, place dust cover over microscope. Return to cabinet, holding on to the microscope arm with one hand while supporting the microscope base with the other.
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Erythroblastosis fetalis may occur in
A. a second Rh-negative fetus developing in an Rh-negative woman. B. a first Rh-positive fetus developing in an Rh-negative woman. C. a first Rh-negative fetus developing in an Rh-negative woman. D. a second Rh-positive fetus developing in an Rh-negative woman.
Hypothyroidism during adulthood can produce which of the following disorders?
a) Acromegaly b) Graves' Disease c) Hypoglycemia d) Cushing's syndrome e) Myxedema
What would be the best explanation for why myelinated fibers conduct signals faster than unmyelinated fibers?
A) Diffusion of ions along the axoplasm is faster. B) There are no internodes in unmyelinated fibers. C) There are more internodes in unmyelinated fibers. D) Facilitated diffusion of sodium and potassium is faster in myelinated fibers. E) Active transport of sodium and potassium is faster in myelinated fibers.
Which joints are found at the elbow?
A. Humeroradial, radioulnar, and radiocarpal B. Humeroradial and radioulnar C. Glenohumeral and humeroulnar D. Humeroulnar, humeroradial, and radioulnar E. Humeroulnar and humeroradial