The "A" Horizon or Combined "O/A" Horizons of the Soil

question 32

Multiple Choice

The "A" horizon or combined "O/A" horizons of the soil are known as the ________.

• A) subsurface horizon(s)
• B) illuviation layer(s)
• C) epipedon
• D) regolith
• E) colloidal layer(s)

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Definitions:

Epididymis

A coiled tube that receives sperm from the testis and conveys it to the vas deferens.

Sexual Reproduction

The process by which organisms produce offspring through the combination of genetic materials from two different cells, typically involving male and female gametes.

Genetic Diversity

The total number of genetic characteristics in the genetic makeup of a species, contributing to its ability to adapt and survive changes.

Asexual Reproduction

A mode of reproduction that does not involve the fusion of gametes, resulting in offspring genetically identical to the parent.