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No. Things like an octopus, spider, ant, sea cucumber, etc are animals and they do not have a backbone.

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7y ago

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When you are to be classified as an animal organisms must have a backbone true or false?

False. Not all animal organisms have a backbone; those that do are classified as vertebrates, while those without a backbone are called invertebrates. Invertebrates make up the majority of animal species, including groups like insects, mollusks, and cnidarians. Therefore, having a backbone is not a requirement for classification as an animal.


Are hydras invertebrates?

Yes. They have no backbone therefore, being classified as an invertebrate animal.


Is a sponge an invertebrate or an vertebrate?

no it as an invertebrateVertebrate means that the animal has a backbone. The Sponge (Phylum Porifera) does not have a backbone therefore it would be classified as an invertebrate.


True or False in taxonomy the species of animal that has a backbone is called the Chordata species?

False


How are animal classified on the basis of presence or absence of the backbone in their bodies?

Animals are classified into two main groups based on the presence or absence of a backbone: vertebrates and invertebrates. Vertebrates, which include mammals, birds, reptiles, amphibians, and fish, possess a backbone or spinal column. Invertebrates, on the other hand, lack a backbone and include diverse groups such as insects, arachnids, mollusks, and crustaceans. This classification helps in understanding the structural and functional diversity of the animal kingdom.


Why are sea turtles classified as vertebrates?

they have a backbone


This is an organism that is made of many parts but cannot make its own food. They are classified by whether they have a backbone or not.?

The organism you are referring to is likely an animal. Animals are multicellular organisms that must consume other organisms for energy since they cannot produce their own food through photosynthesis. Animals are classified into vertebrates (having a backbone) and invertebrates (lacking a backbone).


Scientists divide animals into two groups based on whether or not an animal has a backbone. true or false.?

yes


How does size of a backbone determine how big an animal will be?

does the backbone determined the size of animal


What is the smartest animal without a backbone?

The smartest animal without a backbone will have to be an octopus


Animal that has a backbone?

All mammals have a backbone.


Is a flamingo a vertebrate or a invertebrate?

An invertebrate is an animal that doesn't have a backbone. A vertebrate is an animal that has a backbone. Since a flamingo has a backbone, (like all birds) it is a vertebrate.it is vertebrate