Arthropod, (phylum Arthropoda), any member of the phylum Arthropoda, the largest phylum in the animal kingdom, which includes such familiar forms as lobsters, crabs, spiders, mites, insects, centipedes, and millipedes.
Which is the second largest phylum of animal kingdom?
Mollusca is the second largest Phylum in the Animal Kingdom.
What are the two main phyla of the animal kingdom?
The most easily recognised are Porifera, Cnidaria, Arthropoda, Nematoda, Annelida, Mollusca, Platyhelminthes, Echinodermata, and Chordata. Animal phyla each comprise a branch of the evolutionary tree and these branches are always connected to other branches.
Which animal phylum consists largest number of animals?
The largest phylum in the animal kingdom is kingdom Arthropoda. They make up more than 80 per cent of all animal species documented till date. The kingdom contains between 5 and 10 million species, distributed across the globe.
Which is the largest and second largest phylum among Kingdom Animalia?
ANSWER: The second largest phylum of kingdom animalia is Mollusca.
Which is the largest class in animal kingdom?
The biggest class of animal kingdom is? Answer: Insecta is a class of invertebrates. They are placed within the phylum Arthropoda. The characteristics of group Insecta are that they have six legs or three pairs of legs.
Which is the smallest phylum of animal kingdom?
Placozoa is the smallest phylum in the animal kingdon with only one identified species.
What are the 7 animal kingdoms?
Kingdoms of Life
- Archaea.
- Animals (Zoology)
- Bacteria (Bacteriology)
- Fungi (Mycology)
- Plants (Botany)
- Protists (Protistology)
What are the 2 main groups of animals?
The animal kingdom can be divided into two main groups – vertebrates (animals with a backbone) and invertebrates (animals without a backbone).
What are the 9 major phyla?
- * Porifera (sponges)
- * Cnidaria (jellyfish, corals, anenomes)
- * Platyhelminthes (flatworms)
- * Nematoda (roundworms)
- * Mollusca (bivalves, squid)
- * Annelida (segmented worms)
- * Arthropoda (arachnids, crustaceans, insects)
- * Echinodermata (starfish, urchins)
Why are arthropods called so?
Arthopod is a word that is derived from a Greek word called Arthropoda. The meaning of Arthopoda is Joint foot. Thus, Arthopods are joint foot invertebrate animals having external skeletons. They don’t have skin, instead they have hard body surfaces i.e., External Skeleton.
What are the 10 Phylums?
The different phylum of the animal kingdom are as follows:
- Porifera.
- Coelenterata (Cnidaria)
- Platyhelminthes.
- Nematoda.
- Annelida.
- Arthropoda.
- Mollusca.
- Echinodermata.
What is the largest group of arthropods?
Insects are the largest group of arthropods but can be distinguished from other arthropods by certain characteristics.
Is the second largest phylum?
Mollusca composes the 2nd largest phylum of animal kingdom after arthropods, which is the largest phylum in the animal kingdom. Around 85,000 species of molluscs are recognised. Molluscs is the largest marine phylum, comprising about 23% of all the named marine organisms.
Which is the third largest phylum?
Phylum chordata is the third largest phylum in the animal kingdom.
Is second largest phylum in Animal Kingdom a Mollusca B Arthropoda C porifera D platyhelminthes?
Complete answer:
There are 10 distinct phylum in animal kingdom, and they are porifera, Coelenterata, Ctenophora, Platyhelminthes, Aschelminthes, Annelida, Arthropoda, Mollusca, Echinodermata, Hemichordate, Chordata. The largest animal kingdom is Arthropoda and Mollusca comes second.