91影视

The catabolic process that occurs in the body cells produces various waste materials that are toxic to the body. These waste materials are eliminated through the group of organs called the excretory system. Kidneys are the central organ of the excretory system.

The earthworm鈥檚 body consists of capillaries. These capillaries are narrower than human capillaries. The excretory organ in earthworms, such as nephridia, receives the blood or coelomic fluid from the capillary network.

Therefore, both humans and earthworms comprise a capillary network.

Thus, the statement is false.

The nephron of the human maintains the osmolarity of body fluids and filters water and solutes in the blood to excrete the excess salt and ammonia. In the same way, nephridia regulate osmolarity by removing the nitrogenous waste from the earthworm鈥檚 body.

Therefore, the excretory organ of the earthworm and human function in both osmoregulation and excretion.

Thus, the given statement is false.

Coelomic fluid in earthworms plays a crucial role in osmoregulation and their locomotion. It transports waste material to the nephridia. However, nephrons filter blood to maintain osmoregulation and eliminate excessive salts and nitrogenous wastes in humans.

Therefore, nephridia and nephrons differ in their means of supply.

Thus, the given statement is true.

Epithelia refer to the tissues that allow the absorption of water and salts and secrete them outside. They are found throughout the body in most animals. The skin of the earthworm is lined with epithelial tissue. Humans鈥� nephrons also comprise epithelium with the coordinated action of the potassium channel.

Therefore, transport epithelium is present in earthworms and humans.

Thus, the given statement is false.