What is vestigial structure​

Vestigiality is the retention during the process of evolution of genetically determined structures or attributes that have lost some or all of the ancestral function in a given species

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Structures that have no apparent function and appear to be residual parts from a past ancestor are called vestigial structures. Examples of vestigial structures include the human appendix, the pelvic bone of a snake, and the wings of flightless birds. Noun. (plural vestigial structures) (biology) A structure in an organism that has lost all or most of its original function in the course of evolution, such as human appendixes. structure in an organism that has lost all or most of its original function in the course of evolution, such as human appendixes.

Explanation:

doctors i believe if i'm wrong sorry

sand 60

clay 10

silt 30

sandy loam should be dominated by the sand. as the amount of sand increased, the amount of slit needed to anchor the plants' roots to the sand will also be increased. even though the amount is very little, 10% part of clay is still necessary for proper oxidation.