Question

An early type of animal or plant from which a modern animal or plant has evolved.​

Answer 1

please see above picture your answer is there

Answer 2

Petromyzoniformes and Agnatha

Explanation:

• Any member of the group of primordial jawless fishes that includes lampreys (order Petromyzoniformes), hagfishes (order Myxiniformes), and numerous extinct taxa (superclass Agnatha).
• Lampreys have been a severe problem to North American food fisheries, reducing the numbers of lake trout and other species in the Great Lakes.
• Hagfishes are minor pests of commercial food fisheries in the North Atlantic, whereas lampreys have been a severe issue of food fisheries in North America's Great Lakes due to their parasitic habits, where they have reduced the numbers of lake trout and other species. Otherwise, agnathans are of minor economic significance.
• However, because it contains the oldest known craniate fossils and because living agnathans exhibit many basic characteristics, the group is of tremendous evolutionary importance.
• The gills of some species open to the surface through distinct pores, while the gills of others open to a shared duct, which then opens to the surface by a single pore. Skin covers the eyes, which are vestigial.
• All of the approximately 70 species that have been identified are restricted to cold, marine bottom waters at depths ranging from 10 metres (about 33 feet) at northern latitudes to 1,300 metres (about 4,300 feet) in tropical oceans.
• Adults range in length from 40 to 80 cm (15 to 30 inches). Except for the number and location of gill holes, all species appear to be very similar.
• Lampreys, which number around 43 species, can be found in all continents except Africa's chilly, fresh, and coastal waters. All of the species have a lot in common.
• The eyes are large and the solitary nose is located on the top of the head. Lampreys have seven pairs of gills on their outside. Adults have a length of 15 to 100 cm (6 to 39 inches).