class 9 Biology question what is the largest Phylum of any Animal Kingdom Write the character of this Phylum with example
Answers
Answer:
phylum Arthopoda
Explanation:
crab
Answer:On a pleasant evening, you decide to go to a park. However, you end up having painful itchy eruptions on the skin. Clearly, you were bitten by an insect. After all, insects are everywhere. They belong to a group of animals called the Phylum Arthropoda, which form the largest percentage of the world’s organisms. They make up about 80 percent of the known species of animals! It is quite hard to escape them.
Explanation:Phylum Arthropoda
Arthropods are joint-legged animals and you must have come across a few of these animals. Some prominent ones include insects, spiders, ants, bees, crabs, shrimps, millipedes, centipedes etc. Scientifically speaking, they all come under the Animal Kingdom under phylum Arthropoda.
The success of the arthropods can mainly be attributed to the presence of exoskeleton, which makes them versatile, is protective in nature and also allows flexibility and mobility. You can see arthropods living on land and in water. They are also a source of food for many animals and human beings too!
Spider
(Source: Pinterest)
Browse more Topics under Animal Kingdom
Phylum Annelida
Phylum Aschelminthes
Phylum Chordata
Phylum Coelenterata
Phylum Echinodermata
Phylum Hemichordata
Phylum Mollusca
Phylum Platyhelminthes
Phylum Porifera
Learn more about Phylum Coelenterata here.
Characteristic features of Phylum Arthropoda
The body structure shows bilateral symmetry.
They are triploblastic.
They can be found in all types of habitats – land, water and soil.
They have jointed limbs.
The body is segmented into three regions – Head, Thorax and Abdomen.
The body cavity is filled with blood and is called the haemocoel. The blood is white in colour.
The exoskeleton is hardened and is made of chitin.
They have a well-developed central nervous system.
The head is well developed and bears the sensory organs and brain.
They have compound eyes and mosaic vision.
The digestive tract is complete with the mouth and anus at opposite ends of the body.
They have an open circulatory system with dorsal heart and arteries.
Respiration is through the general body surface or by gills in aquatic forms and through trachea or book lungs in terrestrial forms.
Sexes are separate and sexual dimorphism is exhibited.
Ant
Examples
Limulus polyphemus (King Crab)
Scorpions
Spiders
Ants
Prawns
Crabs
Cockroach
Butterfly
Mosquito