Your answer would be $4 times $y.
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Answer:
Natural selection occurs when some of those traits help some individuals survive and reproduce more than others. That causes their genes to become more common in the population over time, and it's the way species evolve to adapt to changes in their environment.
Explanation:
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The correct answer is vacuole. Vacuole controls the water input and water output of an amoeba. It is found within endoplasm. The vacuole is an essential part of an amoeba because it maintains the life of an amoeba. Malfunction can cause the amoeba to burst.
The X symbol looks too much like the multiplication symbol, it also makes using it as a variable more confusing.
There are several reasons that contribute to the high level of biodiversity found in the wetlands. Firstly it provides numerous animals and insects to find their food and breed easily. Also this wetland helps the animals to camouflage against their enemies. The wetlands provide home for abundance of marine animals. It is actually a place that maintains a natural balance.<span />