What is the classification of a sea cucumber?

HolothuroideaSea cucumber / Scientific name

What is the habitat of a sea cucumber?

Sea cucumbers are found in virtually all marine environments throughout the world, from shallow to deep-sea environments. Sea cucumbers are benthic, meaning they live on the ocean floor. However, their larvae are planktonic, meaning they float in the ocean with the currents.

What characteristics do members of the phylum have in common?

Animals in the phylum Chordata share five key chacteristics that appear at some stage during their development: a notochord, a dorsal hollow (tubular) nerve cord, pharyngeal gill arches or slits, a post-anal tail, and an endostyle/thyroid gland ((Figure)).

What class and characteristics do sand dollars and sea urchins share?

Sand dollars and sea urchins both belong to the phylum Echinodermata, a group which contains other radially symmetrical animals such as starfish and sea cucumbers. Unlike starfish and sea cucumbers, sea urchins and sand dollars belong to the same class: Echinoidea.

What is sea cucumbers role in the ecosystem?

Sea cucumbers play a vital role in marine ecosystems As deposit feeders, sea cucumbers play an important role in nutrient cycling. Their actions reduce organic loads and redistribute surface sediment, and the inorganic nitrogen and phosphorus they excrete enhances the benthic habitat.

How do sea cucumbers grow and develop?

Reproduction and Life Cycle During spawning, sea cucumbers develop a cobra-like appearance, with their front end raised up from the bottom. Larvae spend several weeks floating in the water. They eventually settle to the bottom and morph into tiny juveniles. Juveniles take several years to grow to their adult size.

What are the three characteristics of phylum?

They are:

• Notochord– It is a longitudinal rod that is made of cartilage and runs between the nerve cord and the digestive tract.
• Dorsal Nerve Cord – This is a bundle of nerve fibres which connects the brain to the muscles and other organs.
• Post-anal tail – This is an extension of the body beyond the anus.

What is the characteristic of classification for phylum?

A phylum is a classification of organisms that ranks below kingdom and above class. The origins of taxonomy, the classification of organisms, began with Aristotle who separated plants from animals. Carl von Linné later introduced binomial nomenclature, using two Latin names to describe every organism.

What is the characteristics of sand dollar?

Physical characteristics: Western sand dollars have a rigid shell about 3.5 inches (9 centimeters) across and covered with moveable spines. These sand dollars are pale grayish lavender to dark purplish black. They have a five-way petal-shaped pattern of tube feet on the upper surface of the shell.

What is the value of sea cucumbers?

Sea cucumbers might not look it, but they are very valuable creatures — a kilo can cost over $3,000. They are so prized that people will risk their lives to get ahold of one. The rarer these animals get, the deeper divers have to swim to find them.