Jawless fishes are voracious feeders while cartilaginous fishes are predators with a various diet.
The first vertebrates (as far as is known) were a group of extinct*, jawless, heavily-armored fishes called Ostracaderms. *There are a few zoologists who feel that the hagfish and possibly the lamprey and slime hag are ostracaderms, but I disagree. I'm not at all sure that the hagfish and slime hag are true vertebrates.
compare ancient scientist to modern scientist?
You could compare a forum to a shopping plaza in modern society. You may also compare it to a civic center such as a city's "downtown" area.You could compare a forum to a shopping plaza in modern society. You may also compare it to a civic center such as a city's "downtown" area.You could compare a forum to a shopping plaza in modern society. You may also compare it to a civic center such as a city's "downtown" area.You could compare a forum to a shopping plaza in modern society. You may also compare it to a civic center such as a city's "downtown" area.You could compare a forum to a shopping plaza in modern society. You may also compare it to a civic center such as a city's "downtown" area.You could compare a forum to a shopping plaza in modern society. You may also compare it to a civic center such as a city's "downtown" area.You could compare a forum to a shopping plaza in modern society. You may also compare it to a civic center such as a city's "downtown" area.You could compare a forum to a shopping plaza in modern society. You may also compare it to a civic center such as a city's "downtown" area.You could compare a forum to a shopping plaza in modern society. You may also compare it to a civic center such as a city's "downtown" area.
compare chain surveying with modern technique such as total station?
overfishing, and fishes getting traped in abandoned nets
well in the modern thay wore no close
no it is tooo hard to compare
compare olden trains with modern trains
William A. Gosline has written: 'Functional morphology and classification of teleostean fishes' -- subject(s): Classification, Fishes, Morphology, Osteichthyes 'The cyprinid dermosphenotic and the subfamily Rasborinae' -- subject(s): Anatomy, Classification, Cyprinidae, Eye-sockets, Fishes 'Unbranched dorsal-fin rays and subfamily classification in the fish family Cyprinidae' -- subject(s): Classification, Cyprinidae, Fins, Fishes 'Some osteological features of modern lower teleostean fishes' -- subject(s): Anatomy, Fishes, Osteichthyes, Skeleton
Fish are classified in the kingdom Animalia, and within that they are nested into the phylum Chordata, subphylum vertebrata. Beyond that, extant(modern day) fish are grouped into several classes; Agnatha (jawless fish-hagfish, lamprey, ~100 species), Chondrichthyes(cartilagenous fish - sharks, rays, skates, chimeras, ~950 species), and the vast majority of modern fish (30 000 species) are in the class Osteichthyes(bony fish), of which most in that group are in the subclass Actinopterygii, the ray finned fishes. The only other extant group is a small sister group of the Actinopterygii, the Sarcopterygii, which consists of only the ancient Coelacanth, Latimeria chalumnae, and a few (6) species of Lung Fish.There are a great number of ways to classify fish. Fish can be classified by environment, size, coloring, and diet.
In modern they change the words but in early it's the original.
four modern classification system