The answer: Peritoneum.
The peritoneum is the serous membrane that lines the abdominopelvic cavity.
This membrane is composed by two layers: parietal peritoneum and visceral peritoneum. This membrane supports the abdominal organs and serves as a channel for their blood, lymphatic vessels and nerves.
The answer: It is a diploid cell so each cell would have half the number of chromosomes altogether to make 50 chromosomes. In conclusion, the zygote would have 25 chromosomes.
Answer:
The other two subphyla are invertebrate chordates that lack a backbone. Members of the subphylum Urochordata are tunicates (also called sea squirts). Members of the subphylum Cephalochordata are lancelets. Both tunicates and lancelets are small and primitive.
Explanation:
Not really an explanation for this one.