Question

Many animals can be categorized as either protostomes and deuterostomes based on certain features of their embryonic development. Determine whether each of the following terms applies to only protostomes, only deuterostomes, both protostomes and deuterostomes, or neither.

Answer 1

Answer:

Protosome: Mouth from blastosphere; Spiral; coelum from mesoderm

Deuterostome: Anus from blastosphere; radial, cleavage; coelum from folds of archenteron

Both: Tripoblast

Neither: Diploblast

Explanation:

The proteasome is a large protein complex that has 3 particles or complexes that can be isolated separately. Of the 3 complexes there are two regulatory particles (11S and 19S) that are made up of a number of proteins that vary depending on the organism in question, the proteasomes of eukaryotes being more complex than those of prokaryotes and those of multicellular cells more complex than those of the unicellular.

Deuterostomes. (Gr. Deuteros, second and stoma, mouth): Animal in which the anus is formed in or near the blastopore area in the developing embryo, and the mouth is formed secondarily elsewhere. They include echinoderms, hemi-chords and cords.

The deuterostomes or deuterostomes in the initial stages of embryonic development form the anus first and the mouth second, as opposed to the protostomes, in which the mouth and anus develop in reverse order) are a superfilo of animals in which the The adult's mouth does not derive from the embryonic blastopore, but is from new formation. They belong to the Bilateria clade, which includes all animals with bilateral symmetry.