This article is about the insect. For other uses, see Cockroach (disambiguation).
Cockroaches (or roaches[1][2][3]) are insects belonging to the order Blattodea (Blattaria). About 30 cockroach species out of 4,600 are associated with human habitats. Some species are well-known pests.
Cockroach
Temporal range: Late Jurassic–Present
PreꞒꞒOSDCPTJKPgN
Common household cockroaches
A) German cockroach
B) American cockroach
C) Australian cockroach
D&E) Oriental cockroach (♀ & ♂)
Scientific classification
Kingdom:
Animalia
Phylum:
Arthropoda
Class:
Insecta
Superorder:
Dictyoptera
Order:
Blattodea
Families
Anaplectidae
Blaberidae
Blattidae
Corydiidae
Cryptocercidae
Ectobiidae
Lamproblattidae
Nocticolidae
Tryonicidae
Modern cockroaches are an ancient group that first appeared during the Late Jurassic, with their ancestors, known as "roachoids", likely originating during the Carboniferous period around 320 million years ago. Those early ancestors, however, lacked the internal ovipositors of modern roaches. Cockroaches are somewhat generalized insects lacking special adaptations (such as the sucking mouthparts of aphids and other true bugs); they have chewing mouthparts and are probably among the most primitive of living Neopteran insects. They are common and hardy insects capable of tolerating a wide range of climates, from Arctic cold to tropical heat. Tropical cockroaches are often much larger than temperate species.
Modern cockroaches are not considered to be a monophyletic group, as it has been found based on genetics that termites are deeply nested within the group, with some groups of cockroaches more closely related to termites than they are to other cockroaches, thus rendering Blattaria paraphyletic. Both cockroaches and termites are included in Blattodea.
Some species, such as the gregarious German cockroach, have an elaborate social structure involving common shelter, social dependence, information transfer and kin recognition. Cockroaches have appeared in human culture since classical antiquity. They are popularly depicted as large, dirty pests, although the majority of species are small and inoffensive and live in a wide range of habitats around the world..
Dista · 3 months ago Published on 2025-10-23 07:21:43 ID NUMBER: 135153
🌿 লতিরাজ কচু চাষ – লাভজনক একটি ফসল 🌿
👉 লতিরাজ কচু হলো কচুর একটি উন্নত জাত, যা লতি উৎপাদনের জন্য বিশেষ জনপ্রিয়। সঠিক পরিচর্যা করলে এটি থেকে দীর্ঘদিন ধরে লতি সংগ্রহ করা যায়।
✅ জমি ও মাটি
• দো-আঁশ বা পলি দো-আঁশ মাটি সবচেয়ে ভালো।
• • পানি জমে না কিন্তু আর্দ্রতা ধরে রাখে এমন জমি উপযুক্ত।
• জমি ভালোভাবে চাষ দিয়ে নরম করে নিতে হবে।
✅ রোপণ পদ্ধতি
• চারা/গুটি ব্যবহার করে চাষ করা হয়।
• • সারির দূরত্ব: ৬০–৭৫ সেমি
• গাছের দূরত্ব: ৪৫–৬০ সেমি
• • ৭–১০ সেমি গভীরে গুটি রোপণ করতে হবে।
Buddhism is a religion rooted in the ideas of Siddhartha Gautama, and the number of Buddhist followers has grown significantly over the last century. In 1910, researchers reported that Buddhism had a following of approximately 138 million individuals, primarily concentrated throughout Asia. By 2010, that number had reached roughly 495 million, with a larger population size outside of Asia. Between 2000 and 2010, the United Arab Emirates and Qatar were two of the countries with the fastest growth in the practice of Buddhism. Australia also reported that Buddhism was the country's fastest growing religion in terms of percentage, with a growth rate of 79.1% between 1996 and 2001.
Sociologists predict that the global Buddhist population will increase to 511 million by 2030, but then experience a decline over the following 2 decades. These researchers claim that the population will return to its current size by 2050. This decline is expected due to a low birth rate in Buddhist women and an aging population that will not be replaced by younger generations. This change means that the worldwide percentage of Buddhists, which is currently around 7%, will drop to only 5% in 2050, taking global population increase into account. In some countries, however, the population is expected to continue growing. This article discusses the countries expected to have the highest Buddhist population totals by the year 2050.
The Gomati District with its headquarter at Udaipur was created in the year 2012. Udaipur is popularly known as the city of lakes and was the capital of Tripura till 1760 A.D. The city is famous for its Mata Tripura Sundari Temple which is situated about 3 km away from Udaipur at Matabari. The temple is one of the 51 Mahapithasthans of India. The Gomati figures prominently in Tripura’s indigenous folklore, culture, religious rites and ritual so much so that tribal people perform posthumous rites dedicated to their departed near and dear ones on the bank of the river Gomati in the conviction that ablution with the consecrated water of the sacred river will pave the way for ascendance to heaven of their departed dear ones. As part of the administrative reorganisation effected in October last year the Gomati district comprising Udaipur, Amarpur and newly created Karbook subdivisions was created as a truncated version of the erstwhile South Tripura district.Topographically,the Gomati district is marked by lush green and fertile Gomati valleys and the towering Debtamura hill range which straddles Udaipur and Amarpur subdivisions of the district with its exquisite sculptural works carved on panels of the hills.
Udaipur is famous for its many temples and ancient heritage
August 20, 2017
Udaipur, Tripura’s historic capital, is situated on the banks of the Gomati river. About 53km from Agartala, this small town can be easily accessed via road from the capital city.
Referred to as the ‘Lake City’, the town serves as the headquarters of the Gomati District. Udaipur was the capital of the Manikya kings, till Maharaja Krishna Chandra Manikya Bahadur moved the capital to Agartala.
Formerly known as Rangamati, Udaipur is dotted with many beautiful lakes and ancient temples. The Tripura Sundari Temple is the holiest shrine for the people of this state, while some of the popular lakes, which are frequented by tourists, include Kalyan Sagar, Mahadeb Dighi, Jagannath Dighi, Amar Sagar and Dhani Sagar.
This article is about the insect. For other uses, see Cockroach (disambiguation).
Cockroaches (or roaches[1][2][3]) are insects belonging to the order Blattodea (Blattaria). About 30 cockroach species out of 4,600 are associated with human habitats. Some species are well-known pests.
Cockroach
Temporal range: Late Jurassic–Present
PreꞒꞒOSDCPTJKPgN
Common household cockroaches
A) German cockroach
B) American cockroach
C) Australian cockroach
D&E) Oriental cockroach (♀ & ♂)
Scientific classification
Kingdom:
Animalia
Phylum:
Arthropoda
Class:
Insecta
Superorder:
Dictyoptera
Order:
Blattodea
Families
Anaplectidae
Blaberidae
Blattidae
Corydiidae
Cryptocercidae
Ectobiidae
Lamproblattidae
Nocticolidae
Tryonicidae
Modern cockroaches are an ancient group that first appeared during the Late Jurassic, with their ancestors, known as "roachoids", likely originating during the Carboniferous period around 320 million years ago. Those early ancestors, however, lacked the internal ovipositors of modern roaches. Cockroaches are somewhat generalized insects lacking special adaptations (such as the sucking mouthparts of aphids and other true bugs); they have chewing mouthparts and are probably among the most primitive of living Neopteran insects. They are common and hardy insects capable of tolerating a wide range of climates, from Arctic cold to tropical heat. Tropical cockroaches are often much larger than temperate species.
Modern cockroaches are not considered to be a monophyletic group, as it has been found based on genetics that termites are deeply nested within the group, with some groups of cockroaches more closely related to termites than they are to other cockroaches, thus rendering Blattaria paraphyletic. Both cockroaches and termites are included in Blattodea.
Some species, such as the gregarious German cockroach, have an elaborate social structure involving common shelter, social dependence, information transfer and kin recognition. Cockroaches have appeared in human culture since classical antiquity. They are popularly depicted as large, dirty pests, although the majority of species are small and inoffensive and live in a wide range of habitats around the world..
The American cockroach stands out as the largest among common cockroach species. With a reddish-brown hue and a yellowish margin, it measures around 1.6 inches in length. This insect undergoes 6-14 molts, often 13, and lives about 700 days - the longest life cycle in its class5.
