Which vessels are most intimate with the nephron loop and serve as a point to collect ions and water back into the blood?

What are two ways in which waves erode the land?

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

Apaleontologist finds a plant fossil that shows that the plant had seeds. what can the paleontologist conclude?