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Tripoblastic animals have three germ layers
ectoderm
endoderm
mesoderm
ectoderm- forms the brain and nervous system, epidermis and associated structures (skin, hair, nails)
endoderm- forms embryonic gut, inner lining of the digestive tract, inner lining of the respiratory tract and glands including the liver and pancreas
mesoderm- forms the notochord, and somites which includes muscle, outer covering of internal organs, excretory system and gonands, as well as mesenchyme (loose migratory cells) like the dermis (inner skin layer) the circulatory system (heart and blood vessels) and bones and cartilage
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Which body part is the endoderm of the gastrula?
The endoderm of the gastrula turns into internal organs such as the liver and pancreas, and into the lining of some systems.
Is muscle tissue formed by the endoderm?
No, muscle tissue is not formed by the endoderm. Muscle tissue is derived from the mesoderm layer during embryonic development. The endoderm gives rise to the lining of many internal organs such as the gastrointestinal tract and respiratory system.
How many germ layers do annelids have?
They have two layers the endoderm and ectoderm.
The nervous system is produced by?
The endoderm and ectoderm
How is endoderm formed?
Endoderm is formed during gastrulation, which is the process by which the single-layered blastula is transformed into a trilaminar structure. The endoderm forms the innermost layer of cells and gives rise to the lining of the digestive tract and associated organs, such as the liver and pancreas.
What is a giraffe ectoderm or endoderm?
Endoderm
Which cell layer develops into the linings of the digestive and respiratory tracts?
The endoderm.
Which germ layer is destined to become the inner of the body organs?
endoderm
What are the three germ layers of a gastrula?
The three germ layers of a gastrula are the ectoderm (outer layer), mesoderm (middle layer), and endoderm (inner layer). These layers give rise to different tissues and organs in the developing embryo through a process known as gastrulation.
How can you use endoderm in a sentence?
Prussian embryologist Robert Remak coined the term "endoderm" in 1835. The endoderm is the innermost of the three primary germ layers of an embryo. The endoderm may also be called the hypoblast.
Do sponge embryos have endoderm?
no
What is the order of cell layers in the gastrula starting from the inner layer?
endoderm, mesoderm, then ectoderm
Which body part is the endoderm of the gastrula?
The endoderm of the gastrula turns into internal organs such as the liver and pancreas, and into the lining of some systems.
Is muscle tissue formed by the endoderm?
No, muscle tissue is not formed by the endoderm. Muscle tissue is derived from the mesoderm layer during embryonic development. The endoderm gives rise to the lining of many internal organs such as the gastrointestinal tract and respiratory system.
How many germ layers do annelids have?
They have two layers the endoderm and ectoderm.
The nervous system is produced by?
The endoderm and ectoderm
The animal digestive tract forms from the what?
it is the endoderm
