Which best describes the dorsal nerve cord? a thick grouping of nerves that runs down the back of the embryo a group of interconnected neurons that enables response to stimuli a group of similar nerve cell bodies grouped together a stiff, nonconducting rod that develops down the back of all chordate embryos

Answer

A thick grouping of nerves that run down the back of the embryo

Explanation

The dorsal nerve cord is special embryonic characteristic of the ganglia. It is a hollow dorsal cord that is composed of a section of the exfoliated coagulant that forms a hollow tube unlike solid abdominal tubes in other animal species. It is located in the vertebrae of vertebrates.

unicellular organisms, like bacteria, are able to perform all life functions within one single cell. multicellular organisms need many different types of cells to carry out the same life processes. each of these special types of cells has a different structure that it perform a specific function.