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Answer:
#2 is B #3 is
Explanation:
Plant cells have cell walls around them, and animal cells don't have cell walls. The cell walls give plant cells their boxy shapes. That's nice for plants, because it gives them the ability to grow up and out, where they can get lots of sunlight for making their food.
The nucleus maintains the integrity of genes and controls the activities of the cell by regulating gene expression- the nucleus is, therefore, the control center of the cell.
Can be a number of things, rain fall quota, climate, population, vegetation..any of those.
The name of this compound is lithium fluoride.
Acidity is determined using a pH indicator
