Is the tiger more closely related to the whale or the snake?

The tiger is more closely related to the whale.
The tiger is more closely related to the snake.
The tiger is related as closely to the whale as the snake.

Which type of neuroglia is found outside of the brain?

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

Development of new communities in disturbed environments, such as a burned or a clear cut forest, is called