How do cells of an embryo get inside during gastrulation?Multiple ChoiceCells crawl and change shape.The fertilization envelope punches in the blastopore.Muscle contractions of the uterus punch in the blastopore.Enzymes dissolve a hole in the blastocyst.

The process in which the embryo develops following blastulation when some of the outer embryonic cells get pushed inward during a process called invagination. This creates many structures, including germ layers.

Embryonic development begins withMultiple Choicefertilization.the first cell division.the development of the blastocyst.implantation.gastrulation.

What animal embryonic structure is an indentation formed during gastrulation, evident in the gastrula stage?Question 9Select one:a.blastoporeb.blastocoelc.neural tubed.gastrula

Cells in an embryo’s _______________ will later form muscle, bones, and the circulatory system.

The embryo implants into the uterus. State what happens to the fertilised cell for it to become the embryo.