Nerves branch in intervals from which of the following structures in a chordate embryo? (1 point)

tail
pharyngeal pouches
notochord
hollow nerve cord

The correct answer is option D, " hollow nerve cord"

Reason -

A hollow nerve cord primarily called a Dorsal Hollow Nerve cord during development from ectoderm branches and rolls into a hallow structure. In Chordate the hallow nerve lies at the top of an species or it is located near to the notochord. This nerve cord in the chordates develops into the brain and spinal cord which later on forms the part of central nervous system.  

i do not know and i have a 100 in this class

hydroxyl -oh

alcohols, always polar, can form hydrogen bonds with h2o molecules

carboxyl -cooh  

cargoxylic acids, has acidic properties which is a source of hydrogen ions, found in cells in ionized for with a charge of oh-1

carbonyl > co

ketone if within skeleton, aldehyde if group is at the end of skeleton, k & a may be structural isomers, it determines 2 sugars (ketose & aldose)

amino -nh2

amines, acts as a base, it can pick up h+ ions from surrounding solution, ionized with charge of 1+

methyl ch2

addition to rna/dna affects and gene expression

phosphate -opo3 ²⁻

organic phosphates, contributes to negative charge to, molecule that it is a part of, and potential to react with h20

sulfhydryl -sh

thiols, cross-linking stabilize the protein, and it is structure