Germ layers.
Embryonic layers are the three primary layers of cells in the early embryo that give rise to all the tissues and organs in the body. These layers are the ectoderm (outer layer), mesoderm (middle layer), and endoderm (inner layer). During development, these layers differentiate and specialize to form various structures in the body.
The process of embryonic tissue development where tissue layers form during animal development is called gastrulation. This process involves the rearrangement and differentiation of cells to create distinct layers that will give rise to different body structures and organs.
The space between the two layers of the mesoderm is called the coelom. It is a body cavity that forms during embryonic development and gives rise to various organs, such as the heart, lungs, and digestive system.
Daphnia have three germ layers: ectoderm, mesoderm, and endoderm. These layers are formed during embryonic development and give rise to the different tissues and organs of the organism.
Layers or beds / bedding are other names for strata in geology.
There are three layers of embryonic tissue present in the pig. These layers are called the ectoderm, mesoderm and the endoderm.
Embryonic layers are the three primary layers of cells in the early embryo that give rise to all the tissues and organs in the body. These layers are the ectoderm (outer layer), mesoderm (middle layer), and endoderm (inner layer). During development, these layers differentiate and specialize to form various structures in the body.
The process of embryonic tissue development where tissue layers form during animal development is called gastrulation. This process involves the rearrangement and differentiation of cells to create distinct layers that will give rise to different body structures and organs.
Sponges have two germ layers therefore they are diploblastic.
A Syncline
Phylum arthropoda does fall under the Protostomia clade characterized by bilateral symmetry and three germ layers.
The space between the two layers of the mesoderm is called the coelom. It is a body cavity that forms during embryonic development and gives rise to various organs, such as the heart, lungs, and digestive system.
Daphnia have three germ layers: ectoderm, mesoderm, and endoderm. These layers are formed during embryonic development and give rise to the different tissues and organs of the organism.
The three embryonic tissue layers of animals are ectoderm, mesoderm, and endoderm. These layers give rise to different specialized tissues and organs in the developing organism during the process of gastrulation. Ectoderm develops into structures like the skin and nervous system, mesoderm gives rise to muscles and bones, and endoderm forms the lining of the gut and associated organs.
Another name for geological seams is geological strata or rock layers.
The visceral pericardium is the outer sac that surrounds the heart. Another name for the visceral pericardium is the endocardium.
Zygote is pre-embryonic and a fetus is post-embryonic however I don't know a perfect synonym for embryo.