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 largest animal group?
Arthropods (spiders, insects and other invertebrates with hard exteriors) make up the largest animal group on Earth, but only one arthropod species can claim the title of largest by size: the Japanese spider crab (Macrocheira kaempferi).
Which classes has the largest number of animals?
In terms of numbers of species, insects certainly represent the largest percentage of the world’s organisms. There are more than 1 million species of insects that have been documented and studied by scientists.
Which is the second largest animal kingdom?
Complete answer: Mollusca is the second largest Phylum in the Animal Kingdom.
Which is the largest class?
Hexapoda (Insecta) is the largest class of Phylum Arthropoda. It constitutes the largest number of species of arthropods.
What animal has 3 hearts?
The giant Pacific octopus has three hearts, nine brains and blue blood, making reality stranger than fiction. A central brain controls the nervous system. In addition, there is a small brain in each of their eight arms — a cluster of nerve cells that biologists say controls movement.
What is the strongest animal in the world?
Top 10 Strongest Animals
- Dung Beetle. A dung beetle is not only the world’s strongest insect but also the strongest animal on the planet compared to body weight.
- Rhinoceros Beetle. Rhinoceros Beetles can lift something 850 times their own weight. …
- Leafcutter ant. …
- Gorilla. …
- Eagle. …
- Tiger. …
- Musk Ox. …
- Elephant. …
Which class has the largest number of animals * 1 point?
The class named Insecta contains the largest animal number.
Almost two third of all the species that are known by us are all insects.
Which phylum has a true Coelom?
A phylum with true coelom is arthropoda.
In which group of animals have flame cells?
A flame cell is a specialized excretory cell found in the simplest freshwater invertebrates, including flatworms, rotifers and nemerteans; these are the simplest animals to have a dedicated excretory system. Flame cells function like a kidney, removing waste materials. Bundles of flame cells are called protonephridia.
Which is the third largest phylum of animal kingdom?
Phylum chordata is the third largest phylum in the animal kingdom.
What is the smallest phylum?
Placozoa is the smallest phylum in the animal kingdon with only one identified species.
Which is the second largest phylum of invertebrates?
The Nematoda or roundworms, are perhaps the second largest animal phylum, and are also invertebrates. Roundworms are typically microscopic, and occur in nearly every environment where there is water. A number are important parasites. Smaller phyla related to them are the Kinorhyncha, Priapulida, and Loricifera.
What are the 2 largest groups of animals?
The two main groups of animals are vertebrates and invertebrates.