Answer:
a
Explanation:
a is the life cycle of a caterpillar/butterfly
Tumor-suppresor genes inhibit cell division in the cell-cycle to repair DNA that is damaged or abnormal chromosomes to stop the mutation of such genes which causes pathology in the body.
Answer:
Cold Air Will Sink
Explanation:
As hot air rises cold air will sink, cold air is more heaveir than hot air.