Question

Respiratory pigment in Pheretima is present in
A. Erythrocytes
B. Plasma
C. Yellow cells
D. Mucocytes

Answer 1

Hint: Species that belong to the class Pheretima have a clitellum. Individuals who are androgynous and multiplication can be either sexual or parthenogenetic. Female genital pores lie on the ventral surface of portion 14.

Complete answer:
A couple of male genital pores are arranged centrally on portion 18 segment. Genital papillae may likewise be available ventrally. Likewise, with all nightcrawlers, the advancement of youth is without a larval stage and happens in covers. The worm does their breathing with the skin and thus they needn't bother with red blood cells in the blood. Rather, then the respiratory color hemoglobin is disintegrated in blood plasma. The flow is a closed system.
Erythrocytes are the cells that contain hemoglobin and can convey oxygen to the body. Additionally called a red blood cell (RBC). Erythrocytes are biconcave fit as a fiddle, which expands the cell's surface zone and encourages the dissemination of oxygen and carbon dioxide.
The yellow cells store glycogen and kill poisons and are available in the coelomic fluid of certain annelids.
 The inner epithelium is made out of leukocytes and hackneyed cells.
Hence, option (B) is correct.

Note: Blood is made out of liquid plasma and corpuscles, physiologically similar to the leucocytes of the vertebrates. The red respiratory shade, haemoglobin (or erythrocruorin) happens when it breaks up in plasma. It gives a red tone to blood and helps in the transportation of oxygen for respiration. Blood in Pheretima is red because of hemoglobin as it is available in higher creatures however it is disintegrated in plasma and not restricted to extraordinary corpuscles like erythrocytes.