Fishes are the most diverse vertebrates with over 24,000 species in 4,200 genera, 483 families and 56 orders. The jawless fishes such as the hagfish and lampreys and the cartilaginous fishes, including the sharks and rays, are the most primitive groups and the bony fishes are more advanced.
What is the most diverse vertebrate?
Ray-finned fish, a type of bony fish, are the most diverse group of vertebrates.
Which is the most abundant and diverse group of vertebrates?
Members of the clade Osteichthyes, or bony fishes, are characterized by a bony skeleton. The vast majority of present-day fishes belong to this group, which consists of approximately 30,000 species, making it the largest class of vertebrates in existence today.
Which is the most diverse vertebrate group in the animal kingdom?
birds are the most diverse of all terrestrial vertebrates.
Why are fishes so diverse?
Fish express extremely diverse sex determination systems, mating systems, sensory systems and reproductive tactics that have evolved multiple times and account for their evolutionary success.
Which clade is most diverse?
The most diverse clade of vertebrate in terms of number of species is Actinopterygii (ray-fined fish). The group to which salmon, trout, goldfish, and sea bass belong is ? The most specific answer is Actinopterygii, although the fish also belong to Osteichthyes, Gnathostomata, Vertebrata, and Chordata.
Are birds the most diverse?
“This new number says that we haven’t been counting and conserving species in the ways we want.” Birds are traditionally thought of as a well-studied group, with more than 95 percent of their global species diversity estimated to have been described.
What are 10 invertebrates?
Classification of invertebrates
- Sponges (Porifera)
- Comb jellies (Ctenophora)
- Hydras, jellyfishes, sea anemones, and corals (Cnidaria)
- Starfishes, sea urchins, sea cucumbers (Echinodermata)
- Flatworms (Platyhelminthes)
- Earthworms and leeches (Annelida)
- Insects, arachnids, crustaceans, and myriapods (Arthropoda)
Is snake a vertebrate?
Snakes belong to the vertebrates, along with all other reptiles and amphibians, mammals, birds, and fish. All these animals have an inner skeleton. Bones give structure and strength to bodies.
What are five examples of vertebrates?
These five classes are fish, amphibians, reptiles, birds, and mammals. Fish (including sharks) make up the largest group of vertebrates.
Is a fish a vertebrate?
All fish share two traits: they live in water and they have a backbone—they are vertebrates. Apart from these similarities, however, many of the species in this group differ markedly from one another.
What are the 5 main animal groups?
Animals can be divided into five distinct groups: mammals, fish, birds, reptiles, and amphibians.
Do fishes sleep?
While fish do not sleep in the same way that land mammals sleep, most fish do rest. Research shows that fish may reduce their activity and metabolism while remaining alert to danger. … These periods of “suspended animation” may perform the same restorative functions as sleep does in people.
What is fish diversity?
Fish diversity comprises of species richness (number of species in a defined area), species abundance (relative number of species) and phylogenetic diversity (relationships between different groups of species) (Gorman and Karr, 1978).
What type of fish is a shark?
Sharks are a special type of fish known because their body is made out of cartilage instead of bones like other fish. The classification of this type of fish is “elasmobranch.” This category also includes rays, sawfish, and skates.