Segmentation is the subdivision of the body into segments or metameres. True segmentation is found in which of the following phyla? A) Annelida, Mollusca, ArthropodaB) Mollusca, Chordata, AnnelidaC) Arthropoda, Annelida, ChordataD) Arthropoda, Chordata, Porifera

Arthropoda, Annelida, Chordata. (Ans. C)

Explanation:

Segmentation occurs in the body plan in which recounted body units are organized along the anterior-posterior axis, because of it the body of the species is divided into segments.

Segmentation in the body structure is essential for permitting movement and the evolution of specific body parts and also helps in allow regeneration in certain species. Segmentation occurs in three phylum Arthropoda for example fruit fly, Annelida such as leech, and Chordata such as a mouse.

his research revealed two genetically different groups of prokaryotes, which justified splitting kingdom monera into two kingdoms. the genetic and cellular differences were so great, that these two kingdoms were eventually placed into different domains in the current three-domain system.

when a reversible reaction is occurring in both directions at the same rate; the products and reactants do not change in concentration. a chemical reaction where the compound is broken into its constituent parts.