Bissoy.com
Doctors Medicines MCQs Q&A

Extinct Species বলতে কী বোঝায়?

Extinct Species বলতে কী বোঝায়? Correct Answer বিলুপ্ত প্রজাতি

সর্বশেষ বিদ্যমান সদস্য মারা গেলে একটি প্রজাতি বিলুপ্ত হয়। যখন কোন প্রজাতিতে পুনরুৎপাদন এবং একটি নতুন প্রজন্ম তৈরি করতে সক্ষম কেউ বেঁচে না থাকে, তখন সেই প্রজাতির বিলুপ্তি নিশ্চিত (Extinct Species) বলে ধরা হয়।

Related Questions

In the following question, sentences of a paragraph have been jumbled and labelled as A, B, C and D. You are required to rearrange the jumbled sentences of the paragraph and mark your response accordingly by selecting the correct option. A: Many nations have laws that protect conservation-reliant species which, for example, forbid hunting, restrict land development, or create protected areas. B: The International Union for Conservation of Nature (IUCN) Red List lists the global conservation status of many species, and various other agencies assess the status of species within particular areas.  C: Endangered species may be at risk due to factors such as habitat loss, poaching, and invasive species. D: An endangered species is a species that is very likely to become extinct in the near future, either worldwide or in a particular political jurisdiction.
ধরা যাক, যদি A+B বলতে বোঝায় A হয় B এর পিতা, A-B বলতে বোঝায়A হয় B এর স্ত্রী, Ax B বলতে বোঝায় A হয় B এর ভাই, A + B বলতে বোঝায় হয় A হয় B এর বোন তাহলে উপরের আকার অনুসারে P - Rx Q এই প্রকাশটি বলতে কী বোঝাবে?
Which phenomenon explains that ‘When a species becomes extinct, the plant and animal species also become extinct that are obligatorily associated with the host species’?
Read the statements and answer the question based on it. Statements : 1. Some mammals are extinct and some are critically endangered.
2. All dinosaurs are extinct.
3. Some reptiles are critically endangered and some are already extinct. Which option logically follows the given statements ?
Why do exotic species pose a threat to an indigenous ecosystem such as in a Lake or an isolated island in the Andamans? 1. Such species compete with the local or native species for food. 2. They may be predators of local species. 3. Such species may cause diseases in native species. Select the correct answer code:
Imagine a barren land where once existed a forest. Due to deforestation and fire in that forest, all the species got extinct. A new species came, colonized and expanded in this forest. What kind of succession pattern did this species follow?
An ecosystem is joined by thousands of species, if a problem occurs causing a species to become extinct, it may not affect the proper functioning of the ecosystem initially, but as more and more species are removed, the ecosystem becomes dangerously weak over a period of time. Which hypothesis gave this sentence?
Read the passage carefully and choose the best answer to each question out of the four alternatives and click the button corresponding to it.
Ants have been living on the earth for more than 100 million years and can be found almost anywhere on the planet. It is estimated that there are about 20000 different species of ants. For this reason ants have been called Earth's most successful species. If you watch ants for any length of time you will see that they really do communicate with each other and very effectively too. Ants communicate by touching each other with their antennae. Ants also use chemicals called pheromones to leave scent trails for other ants to follow. Ants build many different types of homes. Many ants build simple little mounds out of dirt or sand. Other ants use small sticks mixed with dirt and sand to make a stronger mound that offers protection from rain. Western Harvester ants make a small mound on top, but then tunnels up to 15 feet straight down to hibernate during winter. Ant mounds consist of many chambers connected by tunnels. Different chambers are used for nurseries, food storage, and resting places for the worker ants. Some ants live in wood like termites. Army ants don't make a home at all but travel in a large groups searching for food. Ants are social insects which means they live in large colonies or groups. Some colonies consist of millions of ants. There are three types of ants in each species, the queen, the sterile female workers and males. The male ants only serve one purpose, to mate with future queen ants and do not live very long. The queen grows to adulthood, mates, and then spends rest of her life laying eggs. A colony may have only one queen, or there may be many queens depending on the species. Ants go through four stages of development: egg, larva, pupa and adult.
Why are ants called the 'Earth's' most successful species?
Propositions under Evidence Act are:
1. Statement is a genus, admission is a species & confession is a sub species
2. Statement & admission are species & confession is a sub species
3. Statement & admission are genus & confession is a species
In this context which of the following is correct:
In December 2020, the International Union for Conservation of Nature's Red List of Threatened Species has declared how many animal and plant species extinct?