Answer: gastrula, archenteron, blastospore
Explanation:
a) Gastrulation is a dramatic reorganization of the hollow blastula into a two-layered or three-layered embryo called a gastrula.
b) Invagination of cells into the blastocoel forms a tube called the archenteron.
c) The open end of the archenteron is called the blastospore..
Anorexia nervosa is an eating disorder. It is characterized by restricted intake of energy food, to maintain low body weight than normal, an intense fear of gaining weight, loss of considerable amount of body weight in short span of time, and a disturbed view of the body as obese. No medicine is used to treat anorexia
Argon 0.93 percent
carbon dioxide 0.038 percent
B.) Inversion.
I'm not quite sure, so might wanna double check, but I think that's correct. Hope I helped, if not I apologize.
