Examlex
Which of the following is the largest rock particle found in soil?
Wharton's Jelly
A gelatinous substance within the umbilical cord that provides cushioning and support to the blood vessels.
Substance
The fundamental physical matter or material that makes up an object or individual.
Digestive System
A group of organs and glands responsible for the breakdown of food into nutrients, which the body uses for energy, growth, and repair.
Endoderm
One of the three primary germ layers in the early embryo that develops into the interior linings of the digestive system and the respiratory system.
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