Select the correct order of classification from largest to smallest:
a. kingdom, family, phylum, class, order, genus, species
b. kingdom, phylum, class, order, family, genus, species
c. kingdom, class, order, phylum, family, genus, species
d. species, genus, family, order, class, phylum, kingdom

Match the following terms describing electrical events with the correct phases of the cardiac cycle. the ventricular muscle cells depolarize at the start of this phase. during this phase, na+ entry through the funny channels causes the pacemaker potential of sa nodal cells to gradually become less negative until it reaches threshold. the ventricular muscle cells repolarize right before this phase. the cytosolic concentration of calcium in the contractile cells of the ventricle is highest during this phase. a. isovolumetric relaxation b. ventricular ejection c. isovolumetric contraction d. ventricular filling

You arrive late to a biological seminar. however, just as you enter the room, you hear the speaker referring to the "five-prime end" and the "three-prime end" of a macromolecule. immediately, you know that they are talking about a: ]

Which of the following is not considered an appendage of the skin? nails glands follicles none of the above