Choose the feature not shown by autumn wood.

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Autumn wood of the first year is in contact with the spring wood of the same year as well as spring wood of 2ndyear.

Autumn wood is less in amount than spring wood of the same year and has narrow xylary elements.

The perimeter of autumn wood of a year is more than the perimeter of the spring wood of the same year.

Autumn wood of every annual ring has same thickness.

answer is D.

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Detailed Solution

The thickness of autumn wood in various years is variable because every year the favorable conditions for growth is not same. In years with more rain fall the autumn wood is denser than the years with less rain fall or water availability. Years with very low temperature the autumn wood is lesser than the years with relatively higher temperatures in the autumn season.

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