A nerve signal is also called a/n .

Drag each tile to the correct box. arrange the phases of mitosis in the correct order. 1 (condensation of chromosomes) 2 (separation of chromosomes) 3 (formation of spindle fibers) 4 (alignment of chromosomes in the center of the cell) 5 (pinching of the cell membrane)

During convection, less dense fluid rises and denser fluid sinks.

Which of the following was not a major animal on land during the carboniferous period? amphibians insects both a and b none of the above