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What exactly is an animal? Are fish, insects and reptiles animals?

2006-08-16 03:47:56 · 12 answers · asked by domino 2 in Science & Mathematics Zoology

12 answers

Anyone that says insects are not animals obviously needs to go back to biology class. By the way not all living things are animals. Living things also includes monerans, protists, fungi, and plants. Insects are multicellular so they are not monerans or protist, Insects cannot make their own food, they are not plants. Insects don't have cell walls which both plants and fungi have. Insects are neither of these. That just leaves animals. Why would insects not be considered animals? If insects aren't considered animals than that means, crabs, spiders, centipedes, sponges, jellyfish or any invertebrates aren't considered animals either. Sorry too disappoint but all of these creatures ARE animals. Insects are animals period. They belong to the kingdom Animalia. Spider boy you need to go back to biology class. Having fur does not define an animal. The lack of a backbone does not define an animal either. Yes insects are arthropods but so are crabs, lobsters, spiders, centipedes and millipedes. And all these creatures also have no backbone. In fact there are more animals without backbone then are animals with backbone. Other animals without backbone includes, sponges, earthworms, octopuses, squids, clams, corals, and jellyfishes. So insects ARE animals. It is not an opinion. It is a complete fact. Science can back this up with all the facts. Taylor: I didn't rip anybody off. These anwers are mine and mine only.

2016-03-27 04:23:10 · answer #1 · answered by ? 4 · 0 0

Yes, as Gregg and fieldworking stated, insects are definitely animals. Basically anything that is multi-cellular and eats other organisms for sustenance is technically an animal. This Kingdom is also sometimes known as Metazoa - basically meaning multicellular animal.

Some people use animal as a synonym for mammal, but mammals make up just a tiny, tiny proportion of the entire Animal Kingdom. It would be like claiming that only the people who live in Kansas City are true Americans. Even vertebrates are a fairly minor group if taken in terms of just number of species represented.

Within the Animal Kingdom, there are a number of different group, or Phyla - all of which are animals. These include:

Phylum Porifera (sponges)
Phylum Cnidaria (corals, sea anenomes, jellyfish)
Phylum Rotifera (microscopic wheel-animals)
Phylum Annelida (segmented worms, including earthworms and leeches)
Phylum Nematoda (round worms)
Phylum Platyhelminthes (flat worms, including tape worms)
Phylum Tardigrada (microscopic 'water bears')
Phylum Arthropoda (insects, crustaceans, arachnids)
Phylum Mollusca (snails, clams, squid, octopus)
Phylum Echinodermata (starfish, sea cucumber, crinoids)
Phylum Chordata (all vertebrates, including birds, reptiles, amphibians, fish, and mammals)

There are many more Phyla within the Animal Kingdom too, including many that have gone extinct. Some of them are very weird, such as Placozoans (that appear to be a big, oozy blob), but they are all still animals.

2006-08-16 04:45:32 · answer #2 · answered by Anonymous · 0 0

All animals are members of the Kingdom Animalia.

So yes.. fish, insects, reptiles.. all under Animalia

2006-08-16 03:52:57 · answer #3 · answered by a 4 · 1 0

Animals are living things which are freely movable(except bacteria). Fish,insect sand reptiles come under Kingdom Animalia.

2006-08-16 04:17:19 · answer #4 · answered by Sreek n 1 · 0 0

I teach Zoology in high school. Insects and their relatives, including spiders and scorpions, belong to a huge group of animals called the arthropods. The main thing that all arthropods have in common is their hard outer coat, which is called an exoskeleton and protects their soft insides. The bodies of arthropods are divided into sections.
So yes, they most definatelt are

2006-08-16 03:58:08 · answer #5 · answered by Gregg P 2 · 4 0

Yes...Look up the Kingdom Animalia. Further look up Arthropoda and Class Insecta. It contains the most populous animal class in the world.

2006-08-16 05:08:59 · answer #6 · answered by An Agent of Chaos 5 · 0 0

There is the "Animal" kingdom and the "Plant" kingdom...
That should answer your question...
If not, then I will tell you that Fish, Insects and Reptiles are
not plants....

2006-08-16 04:33:34 · answer #7 · answered by Anonymous · 0 0

Animals are a major group of organisms, classified as the kingdom Animalia. In general they are multi­cellular, capable of locomotion, responsive to their environment, and feed by consuming other organisms. Their body plan becomes fixed as they develop, usually early on in their development as embryos, although some undergo a process of metamorphosis later on.

Animals include: amphibians (i.e. frog), insects (i.e. butterfly), arthropods (i.e. crustaceans, insects, spiders), mammals (i.e. mice), birds (i.e. blue jay), mollusks, bony fishes, reptiles (i.e. turtles), echinoderms (i.e. black and white sea lilly), sharks

2006-08-16 04:11:02 · answer #8 · answered by fieldworking 6 · 1 0

Yes, they are all animals.

2006-08-16 03:53:52 · answer #9 · answered by synchronicity915 6 · 0 0

Um, no...insects are insects. Animals are mammals, meaning they are warm-blooded and have internal skeletons. Fish, insects and reptiles are not warm-blooded organisms.

2006-08-16 03:53:13 · answer #10 · answered by Anonymous · 0 7

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