Question

Choose the odd one from each of the following:

Neurons, ureters, nephrons, kidneys.

Answer 1

Neurons:

1. Neurons are the structural and functional unit of the nervous tissue and hence the nervous system.
2. It helps in the conduction of chemical and electrical signals.

Nephrons:

1. Nephrons are the microscopic functional units of the kidney.
2. It is a long coiled duct which produces urine.
3. It is a part of the excretory system.

Ureters:

1. The ureters are a pair of long tubes which carry urine from the kidney to the urinary bladder.
2. They are a part of the excretory system.

Kidney:

1. The kidneys are a pair of bean-shaped, reddish-brown organ present in the abdominal cavity.
2. They help in the elimination of toxic waste.
3. They are a part of the excretory system.

Final answer: Neuron is the odd one as it is a part of the nervous system while others are a part of the excretory system.