The Domain Eukarya Is Presently Subdivided into Four Kingdoms as Shown,although

question 17

True/False

The domain Eukarya is presently subdivided into four kingdoms as shown,although new information concerning the protists could increase that number.

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Definitions:

Zygote

The initial cell formed when a sperm cell unites with an egg cell, representing the first stage in the development of a new organism.

Blastopore

The initial opening formed during early embryonic development that can develop into either the mouth or anus in animals.

Archenteron

The central cavity of the gastrula stage of embryonic development that is lined with endoderm; primitive digestive system.

Endoderm Layer

The innermost layer of cells or tissues in an embryo that gives rise to the lining of the gastrointestinal tract and associated organs.