What is one difference between oogenesis and spermatogenesis? O Oogenesis occurs in females, but spermatogenesis occurs in males.
Oogenesis starts at puberty, but spermatogenesis starts before birth.
O Oogenesis involves mitosis, but spermatogenesis involves meiosis.
O Oogenesis involves differentiation, but spermatogenesis does not involve any differentiation.

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

To be or not to be that is da question

Immature bone cells, or osteoblasts, manufacture a protein called osteoid as well as several hormones. because of this, we would expect osteoblasts to contain numerous a) nuclei. b) ribosomes. c) lysosomes. d) golgi bodies.