Question

Nerve cord is in ________ position in invertebrate
A.Dorsal
B.Lateral
C.Ventral
D.Absent

Answer 1

Hint: The nerve cord is the cord of the nervous tissues above the notochord of a chordate which is mostly found in a vertebrate. It is formed from the ectoderm which forms the hollow tube. It is the unique features of the chordates.

Complete answer:
The ventral nerve cord is the most important structure of the central nervous system of the invertebrate. It functions the same as the spinal cord in a vertebrate. The ventral nerve cord plays an important role in coordinating the neural signal from the brains to the different parts of the body and combines both sensory and locomotor output. The ventral nerve cord is composed of ascending and descending neurons that transfer information to and from the brain. The neurons of the ventral nerve cord are arranged into the segmental ganglia with the nerve cord which passes through the ventral side of the organisms.
The ventral nerve cord is commonly found particularly in nematodes, annelids and arthropods.
Hence, the correct answer is C.

Note: The invertebrate is the animal that does not have a vertebral column. Most animals belong to invertebrates. They are mostly unicellular while they are reproduced by two reproductive cells which come together to produce new organisms.