There are four classifications of animals’ amphibious, reptiles and aerial, what is the fourth classification

Question

I thought Mammals were those animals that gave birth to their off springs rather than laying eggs. For example Whales are mammals.

and how about vertibrate and non-vertibrate animals?

Terrestrial was the answer I was looking for...thanks for all the replies...by the way to the last person who answered...it is not taught in 3rd grade, and your answer was wrong as it was in reference with their habitat. Also, if you are so clever you should have understood the premise of the question as all of the other classifications were based on their habitat.

Answer 1

There are many, many more classifications of animals than just those:

Just within the (living) vertebrates (animals with backbones), there are the following classes:

Cephalaspidomorphi (jawless fish like lampreys and hagfish)
Chondrichthyes (rays, sharks and chimerae)
Actinopterygii (ray-finned bony fish)
Sarcopterygii (lobe-finned bony fish)
Amphibians
Reptiles (a waste-basket group including turtles, snakes, lizards, crocodiles, and the extinct dinosaurs, pterosaurs, plesiosaurs and icthyosaurs)
Aves (birds)
Mammals (vertebrates with a single bony mandible, three inner ear ossicles and nourish their young with milk - characteristically also have hair instead of scales)

But if you include the invertebrates, there are also the following Phyla:

Echinodermata (starfish, sea urchins, sea cucumber)
Rotifera (microscopic multi-cellular 'wheel animals')
Annelida (segmented worms such as earthworms, leeches)
Mollusca (snails, clams, sea slugs, octopus, squid)
Platyhelminthes (flatworms)
Arthropoda (insects, crustaceans, chelicerates)
Tardigrada (microscopic multi-cellular 'water bears')
Onychophora (velvet worms)
Nematoda (roundworms)
Cnidaria (jellyfish, sea anemone, hydra)
Porifera (sponges)

and that doesn't even include the weird ones like Bryozoa (moss animals), Phoronida, Nemertea, Rhombozoa, Hemichordata, Orthonectida and many others, or the extinct forms.

So there's way more than four classifications.

Answer 2

Amphibious Reptiles

Answer 3

Mammals

Answer 4

Your categories don't make sense. There are many classifications of animals (as I think were described above). Possibly you are reffering to their living habits, such as Aerial, Aquatic, Amphibious and Terrestrial? Otherwise, Reptiles are a type of vertabrate, and that opens a larger field of classifications - there are many vertabrate and invertabrate animals, and many other classes of animals besides reptiles.

Answer 5

It was mammal, reptile, and amphibian when I went to school but Al Gore has been very prolific of late, maybe he invented another classification.

Answer 6

Phylum Chordata includes Subphylum Vertebrata(Craniata) which inturn is divided into Superclasses. Superclass Gnathostomata includes Classes: Placodermi, Chondrichthyes(cartilaginous fish), Osteichthyes (bony fish), Amphibia, Reptilia, Aves & Mammalia.
If u want invertebrates then:
Protozoa(amoeba, paramecium)
Porifera(sea sponges)
Platyhelminthes(tape-worm, planarians)
Nematoda(round-worms, hook-worms,pin-worms)
Annelida(earthworms,leeches)
Arthropoda(insects, spiders-Arachnids, crustaceans, millipedes,
centipedes etc.)
Mollusca(snails,slugs, octopus,squids,Teredo, Pholas etc.)
Echinodermata(starfish, sea cucumbers, sea-lilies,feather-stars sea-urchins)
I'm not mentioning the sub-phylas for invertebrates.

Answer 7

It is class mammalia which includes animals with satisfy the conditions such as; they have hair, mammary glands, four chambered heart and give birth to live young ones.

Answer 8

MAMMALS
Includes kangaroos, anteaters, bats, monkeys, foxes, bears, otters, tigers, lions, seals, walrus, whales, manatees, elephants, zebras, rhinoceros, hippopotamus, giraffe, & antelopes

BIRDS
Includes penguins, pelicans, storks, flamingos, ibis, ducks, geese, eagles, hawks, vultures, pheasants, cranes, gulls, puffins, parrots, turacos, owls, hornbills, toucans, & starlings

REPTILES
Includes crocodiles, lizards, snakes, & turtles

AMPHIBIANS
Includes frogs, salamanders, & newts

BONY FISH
Includes coelacanths, lungfishes, gars, tarpon, eels, herring, catfishes, pike, salmon, lanternfishes, cod, anglerfishes, silversides, seahorses, scorpionfishes, perches, cichlids, tuna, flounders, & puffers

CARTILAGINOUS FISH
Includes sharks, skates, & rays

ECHINODERMS
Includes sea stars, sea cucumbers, & sea urchins

ARTHROPODS
Includes spiders, scorpions, shrimp, lobster, crabs, insects, millipedes, & centipedes

MOLLUSCANS
Includes clams, snails, octopuses, & squid

CNIDARIANS
Includes jellyfish, sea anemones, & corals

Answer 9

Mammals, but you forgot one of the classifcations, Insects.

Answer 10

The premise of the question is incorrect. The question is moot.