The Oldest Part of the Bivalve Shell Is the

question 26

Multiple Choice

The oldest part of the bivalve shell is the

• A)umbo.
• B)periostracum.
• C)hinge ligament.
• D)left valve.
• E)right valve.

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Definitions:

Lipids

Organic compounds that are fatty acids or their derivatives and are insoluble in water but soluble in organic solvents. They serve as energy sources and structural components in cells.

Adipose Tissue

A type of body tissue containing stored fat, serving as an energy reserve, insulation, and cushioning for organs.

Lipids

A broad group of naturally occurring molecules that include fats, waxes, and certain vitamins, characterized by their insolubility in water.

Pyridoxine

Another name for Vitamin B6, a water-soluble vitamin important for normal brain development and for keeping the nervous system and immune system healthy.