Which form of poetry is a poet likely to use to narrate a fairy tale set to music?
ballad
ode
lyric
elegy

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

Natural resources are any materials that humans obtain from the earth to meet our wants and needs.

Why are current extinctions of concern to enviromentalists?