Question

The process in which ectoderm covers entire embryo of amphibians is called

Answer 1

Ectoderm is one of three germ layers—groups of cells that coalesce early during the embryonic life of all animals except maybe sponges, and from which organs and tissues form. ... The first is the surface ectoderm, which gives rise to tissues on the outer surface of the body like epidermis, hair, and nails

Answer 2

The process in which ectoderm covers entire embryo of amphibians is called epiboly.

• In almost all organisms there is an outer layer called ectoderm which rearranges itself during embryogenesis in a process called gastrulation.
• The method of gastrulation is different from organism to organism.
• In amphibians, a layer of ectodermal cells covers the embryo of amphibians through a process called epiboly and the cells moves radially towards the cavity (blastopore).
• This process is further followed up by two more processes called emboly and invagination.
• These processes are crucial to the growth and development of amphibian embryos.