Answer to Question 1
ANS: A
Sodium is the most abundant cation in the blood. Potassium is the predominant intracellular cation. Chloride is an anion (negatively charged) rather than a cation (positively charged). Magnesium is found predominantly inside cells and in bone.
Answer to Question 2
ANS: A
Hypertonic solutions will move fluid from the intracellular to the extracellular (intravascular). A hypertonic solution has a concentration greater than normal body fluids, so water will shift out of cells because of the osmotic pull of the extra particles. Movement of water from the extracellular (intravascular) into cells (intracellular) occurs when hypotonic fluids are administered. Distribution of fluid between intravascular and interstitial spaces occurs by filtration, the net sum of hydrostatic and osmotic pressures.
Examples of the results of sexual selection, a type of natural selection.
The American Lion was one of the abundant Pleistocene megafauna, a wide variety of very large mammal
Image was downloaded from the Jet Propulsion Laboratory web site
Laboratory tests to screen for infection
Lab results
Gel electrophoresis, an essential laboratory technique in biological science research