B: nucleus, mitochondria, cell membrane
c and d both have chloroplasts which are unique to plant cells
a is wrong because only plant cells have cell walls
Answer:
From areas of shallow water to areas of deeper water.
Explanation:
The answer is cancer.
Cancer is an uncontrolled division of cells. The regulation of cell cycle is necessary for normal cell division. The first phase of the cell cycle is the G1 phase. If the G1 phase is affected, mistakes in this process lead to the uncontrolled division of cells called cancer.
This is true I looked up in the science dictionary.
