Fill in the blank:
Some of a bird's bones are fused, and some
are. These adaptations
reduce the weight of a bird.

Btw this is the quiz from
Sand Diego zoo global academy k-12

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)