Figure 31-1 ​ Refer to the Accompanying Figure. What Is the Structure Labeled

question 23

Multiple Choice

Figure 31-1 ​

Refer to the accompanying figure. What is the structure labeled as 9?

• A) medusa
• B) planula
• C) miracidium
• D) feeding polyp
• E) polyp colony

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Definitions:

Percolation

The process by which a liquid slowly passes through a filter or porous substance.

Aeration

The process of introducing air into a material, such as soil or water, to improve oxygenation and reduce compaction or concentration of gases.

Nutrient-holding Capacity

The ability of soil to retain nutrients and make them available to plants, influencing soil fertility and agricultural productivity.

Soil Textures

Describes the feel, look, and consistency of soil based on the size and distribution of its particles, such as sand, silt, and clay.