19. If you discovered a large deposit (layer) of organic sedimentary rock mountain, what would this indicate to you about the mountain's past history?

Which flexible structure that supports the nerve cord and led to the backbone

If bacteria are much too small to see, what is one reason why can we see colonies in the petri dishes that have plenty of food to eat after only a few days?

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)