The correct terms to fill in the blanks are gastric cavity and extracellular. In cnidarians, the mouth of both the medusa and polyp form opens into an internal gastric cavity where extracellular digestion takes place. The polyp and medusa are body forms that can be found in the phylum Cnidaria. The polyp is a nonmotile body form while the medusa is a free swimming body form.
The correct is the first answer.
The x chromosomes are female chromosomes. We all start off as a female in the womb. Slowly through time, thr y chromosome jump in to make them a male and develop genes that woman do not have. For example, their beard gene is not necessary for example.
The cell cycle or cell-division cycle is the series of events that take place in a cell leading to its division and duplication of its DNA (DNA replication) to produce two daughter cells.