The ____________________ Were Secret Messages Collected Between the U

question 76

Short Answer

The ____________________ were secret messages collected between the U.S.S.R. and spies in the United States by the U.S. Army counterintelligence in the 1940s.

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Definitions:

Ectodermal Tissue

One of the three primary germ layers in the embryo of a multicellular organism, which gives rise to the skin and nervous system.

Body Wall

The outermost layer of an organism's body, protecting internal organs and systems from external threats or injuries.

Gut Formation

The developmental process during which the digestive system is formed in an embryo, a critical aspect of animal development and physiology.

Vertebrates

Animals with a backbone or spinal column, including mammals, birds, reptiles, amphibians, and fish.