Question

Give one example of Urochordates, hemichordates, cephalochordates.

Answer 1

Hint: Hemichordates, urochordates, cephalochordates are all included in kingdom Animalia and under phylum Chordata and they all include notochords (a cartilaginous skeletal rod supporting the body in all embryonic and some adult chordate animals.)

Complete answer:Some examples are,
UROCHORDATA:- Sea pork, Sea peach, Ciona Intestinalis
HEMICHORDATES:- Acorn worm, pterobranchia, graptolithina
CEPHALOCHORDATES:- Bahamas lancelet, Asymmetron lucayanum
Tunicates, or urochordates, are a subphylum of the phylum Chordata, being a member of the same phylum:
(1) A permanent or temporary notochord is present, like a dorsal rod;
(2) A central nervous system is present, as a dorsal tube;
(3) Presence of a pharynx provided with gill slits or pharyngeal pouches, and a ventral gland is also present.

Additional information:
1. Hemichordates
Mainly Marine deuterostome phylum.
Hemichordate is any group of wormlike marine invertebrates.
Hemichordate, any group of wormlike marine invertebrates in close relation with
Chordates and echinoderms.
In close relation with chordates.
They are and have been used to gain insights into the origins of deuterostome and chordate plans of the body.
Detailed studies of this group have a long and distinguished history.

2. Cephalochordates
A cephalochordate is an animal of the chordate subphylum, Cephalochordata.
Commonly called amphioxus or lancelets.
They're the chordates having all 5 synapomorphies, the characteristics all chordates have during the larval or adulthood stages.
These synapomorphies include: a notochord, dorsal hollow nerve cord, endostyle, pharynx, and the post-anal tail is also included.
 The spectrum line of the Cephalochordata notochord is best known for the Bahamas lancelet, Asymmetron lucayanum Cephalochordates are represented in modern oceans by the Amphioxiformes.

Note: Tunicates, or urochordates, are a subphylum of the phylum Chordata, being members of the same phylum. All these include notochords (a cartilaginous skeletal rod supporting the body in all embryonic and some adult chordate animals.) And the arrangement makes them recognized differently.