The Plasma Membrane controls what goes into & comes out of a cell, the plasma membrane is a selectivity permeable; it regulates what passes from one side to another. Water moves easily into and out of cells by Osmosis. Small molecules without charges such as oxygen and carbon dioxide flow through a plasma membrane without assistance, other substances such as proteins, glucose and charged particles called ions cannot pass through the selectively permeable membrane.
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Number 1.slow it down so it does not grow.
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This paragraph seems to be a descriptive essay about the mimic octopus. It describes the way that the mimic octopuses ability to change helps it.
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natural disasters,emigration and scarcity of food
Explanation: natural disasters: this affect population where by organisms leave there area or habitat for another area due to unfavorable conditions eg. flood, bush fire, storms, earthquake etc. and can also lead to death.
Emigration:this is when organisms leave an area for another either in search of food, breeding purpose this reduses population where by organisms may never return.
scarcity of food:this occur when there is insufficiency or no food in an area which makes organisms leave their habitat for another in search of food and might even lead to death.
