Which description best defines blastocyst? ОА. a fertilized egg OB. an egg released from the ovary Ос. a mass of specialized cells OD an embryo with a notochord Reset Next​

Ifound this information on google “yes. they have a mouth and brain at one end and an anus at the opposite end. what characteristics distinguish an annelid from other worms? annelids have segmented bodies and a coelem which is a tube filled with fluid and contains most of the organs.“ i hope it you

B