How can a lever system work at a disadvantage but still be of use to us?
What will be an ideal response?
A lever that operates with the load far from the fulcrum and the effort applied near the fulcrum is operating at a disadvantage, but the advantage is that the load can move over large distances at a rapid rate.
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Ionic compounds dissociate in water into:
A) electrolytes. B) acids and bases. C) polar and nonpolar substances. D) hydrophilic and hydrophobic substances.
Which of the following is NOT an effect of aging with the cardiovascular system?
A. Excessive cardiac output B. Increased varicose veins C. Increased atherosclerosis D. Increased incidence of coronary artery disease
Where do T cells become immunocompetent?
A) thyroid gland B) thymus C) bone marrow D) tonsils
A nerve fiber is enclosed in its own fibrous sleeve called perineurium.
Answer the following statement true (T) or false (F)