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Question - 1 : জীবনানন্দ দাশের প্রবন্ধগ্রন্থ কোনটি ?

a) কবিতার কথা

b) ধূসর পান্ডুলিপি

c) ঝরা পালকের কবি

d) দুর্দিনের যাত্রী


Discus in Board
Question - 2 : বাংলাদেশের গ্রামের সংখ্যা কত ?

a) ৮৫,৪৫০ টি

b) ৮৪,৫০০ টি

c) ৮৭,৩৭২ টি

d) ৮৫,৫০০ টি


Discus in Board
Question - 3 : What would have happened if.........?

a) The bridge is broken

b) The bridge would break

c) The bridge had broken

d) The bridge has been broken


Discus in Board
Question - 4 : সে নির্ঘাত জানে|

a) He knows to certainly.

b) He knows certain.

c) He knew certainly.

d) He knows certainly.


Discus in Board
Question - 5 : তিনি লক্ষ লক্ষ মানুষের মধ্যে একজন।

a) He’s a man in million.

b) He’s a man of millions.

c) He’s man in millions.

d) He’s a man in millions.


Discus in Board
Question - 6 : আবু গারিব বলতে কী বুঝায়?

a) একজন বৈজ্ঞানিক

b) একজন বিখ্যাত দার্শনিক

c) একটি যাদুঘর

d) একটি জেলখানা


Discus in Board
Question - 7 : তোমার কথা ঠিক লেগে গেছে |

a) Your word has come trued.

b) Your word has come true.

c) Your words has come true.

d) Your word has came true.


Discus in Board
Question - 8 : কোন মুসলিম মনিষী সর্বপ্রথম নোবেল পুরস্কার পান?

a) ইয়াসির আরাফাত

b) নাগীব মাহফুজ

c) আনোয়ার সাদাত

d) প্রফেসর আব্দুস সালাম


Discus in Board
Question - 9 : which of the flowing sentences is the correct one?

a) Paper is made of wood

b) Paper is made by wood

c) Paper is made on wood

d) Paper is made from wood


Discus in Board
Question - 10 : ‘মৃন্ময়ী’ রবীন্দ্রনাথ ঠাকুরের কোন ছোট গল্পের নায়িকা?

a) সমাপ্তি

b) দেনা পাওনা

c) পোস্ট মাস্টার

d) মধ্যবর্তিনী


Discus in Board

Red Blood Cells (likewise called erythrocytes or RBCs)

Known for their brilliant red shading, red cells are the most bounteous cell in the blood, representing around 40 to 45 percent of its volume. The state of a red platelet is a biconcave circle with a straightened focus - as it were, the two essences of the circle have shallow bowl-like spaces (a red platelet resembles a doughnut).

Generation of red platelets is constrained by erythropoietin, a hormone created fundamentally by the kidneys. Red platelets start as juvenile cells in the bone marrow and after around seven days of development are discharged into the circulation system. In contrast to numerous different cells, red platelets have no core and can without much of a stretch change shape, helping them fit through the different veins in your body. Notwithstanding, while the absence of a core makes a red platelet progressively adaptable, it additionally restricts the life of the cell as it goes through the littlest veins, harming the cell's films and draining its vitality supplies. The red platelet makes due all things considered just 120 days.

Red cells contain a unique protein called hemoglobin, which helps convey oxygen from the lungs to the remainder of the body and afterward returns carbon dioxide from the body to the lungs so it tends to be breathed out. Blood seems red as a result of the huge number of red platelets, which get their shading from the hemoglobin. The level of entire blood volume that is comprised of red platelets is known as the hematocrit and is a typical proportion of red platelet levels.