Question

What is the pattern of organization of cells in hemichordata?

Answer 1

Hemichordates:

1. Hemichordates are chordates like animals lacking post-anal tails and notochords.
2. These have an organ-system level of cellular organization.
3. The well-defined reproductive and digestive system is present in hemichordates.

They have the following characteristics:

1. Hemichordates live on the seafloor and are usually found in oceans.
2. They come in a wide range of sizes, from a few millimeters to about one and a half meters.
3. Balanoglossus gigas is a hemichordate that can grow to be 1.5 meters long.
4. Filter feeders or substrate eaters are also possible.
5. The majority of creatures in this phylum have a modified proboscis, which gives them the name Acorn worms.
6. These animals have some chordate traits, although they are not fully chordates.
7. The threefold division of the body, with the preoral lobe, collar, and trunk, is another distinguishing trait of these species.
8. The collar carries the tentacles.