The size of a mouse population in a natural ecosystem tends to remain relatively constant due to
O the carrying capacity of the environment
o the lack of natural predators
O cycling of energy
increased numbers of decomposers
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lysosome is this part of the cell is surrounded by a very thick outer membrane to protect the rest of the cell from its strong enzymes.

he movement of air through earth's or any planet's atmosphere is called wind, and the main cause of earth's winds is uneven heating by the sun. this uneven heating causes changes of atmospheric pressure, and winds blow from regions with high pressure to those with low pressure.

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the answer is d. none of the above