Correct order of excretory organs in cockroach, earthworm and rabbits are respectively
Correct order of excretory organs in cockroach, earthworm and rabbits are respectively
The correct option is
B
Malpighian tubules, nephridia, kidney
The excretory organ of the cockroach (belonging to Arthropoda) is the malpighian tubules. It is found at the junction of the midgut and hindgut and is about 150 in number. They are fine, yellow coloured and branched threads present in bundles. In the proximal parts of the malpighian tubules, water and other useful substances are reabsorbed. The remaining materials pass into the gut. More water and inorganic ions are reabsorbed in the gut. Almost solid uric acid is finally eliminated with the faeces.
Nearly every segment of the earthworm (Annelida) has a pair of excretory organs called the nephridia. Each nephridium is made up of a coiled tube that opens into the body cavity. These nephridia are surrounded by capillaries that reabsorb and carry away the substances that are useful, leaving only metabolic wastes, salts, and water in the tube to be discharged through the nephridiopore, a hole on the other end of the tube that opens to outside the earthworm's body.
The excretory organ of all vertebrates is the kidney. The functional unit of the kidney is the nephron. So a rabbit uses a kidney for excretion.
The answer is - malpighian tubules, nephridia, kidney.
The correct option is
B
Malpighian tubules, nephridia, kidney
The excretory organ of the cockroach (belonging to Arthropoda) is the malpighian tubules. It is found at the junction of the midgut and hindgut and is about 150 in number. They are fine, yellow coloured and branched threads present in bundles. In the proximal parts of the malpighian tubules, water and other useful substances are reabsorbed. The remaining materials pass into the gut. More water and inorganic ions are reabsorbed in the gut. Almost solid uric acid is finally eliminated with the faeces.
Nearly every segment of the earthworm (Annelida) has a pair of excretory organs called the nephridia. Each nephridium is made up of a coiled tube that opens into the body cavity. These nephridia are surrounded by capillaries that reabsorb and carry away the substances that are useful, leaving only metabolic wastes, salts, and water in the tube to be discharged through the nephridiopore, a hole on the other end of the tube that opens to outside the earthworm's body.
The excretory organ of all vertebrates is the kidney. The functional unit of the kidney is the nephron. So a rabbit uses a kidney for excretion.
The answer is - malpighian tubules, nephridia, kidney.
