Unlike amphibians, reptiles

a. have lungs to oxygenate blood. b. use single-loop circulatory system. c. have a closed circulation system in which blood circulates entirely within blood vessels. d. have ventricles that are further divided to lessen mixing of oxygen-rich and oxygen-poor blood.

Why does meiosis produce cells with half the chromosomes? o a. most of the chromosomes are not necessary to keep an organism alive. b. a gamete needs only half the number of chromosomes because two gametes join together. o c. it makes the gametes easier to move around in the organism. o d. it is faster to produce gametes with fewer chromosomes.

What is the one part of the nucleotide  that differs among the other different nucle  tides?

What nursing actions are part of the acute respiratory distress syndrome clinical network (ardsnet) protocol?