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Question - 1 : পানামা খাল কোন মহাসাগরকে যুক্ত করেছে?

a) আটলান্টিক ও প্রশান্ত মহাসাগর

b) আটলান্টিক ও ভূমধ্যসাগর

c) ভারত ও প্রশান্ত মহাসাগর

d) প্রশান্ত মহাসাগর ও ভূমধ্যসাগর


Discus in Board
Question - 2 : ১২+২২+৩২+...............+৫০২=কত?

a) ৩৫৭২৫

b) ৪২৯২৫

c) ৪৫৫০

d) ৪৭২২৫


Discus in Board
Question - 3 : বাংলা সাহিত্যের প্রথম ইতিহাস গ্রন্থ রচনা করেন?

a) অসিত কুমার বন্দোপাধ্যয়

b) মুহম্মদ শহীদুল্লাহ

c) দীনেশচন্দ্র সেন

d) সুকুমার সেন


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Question - 4 : তিনি একজন জীবন্ত কিংবদন্তী।

a) He’s a live legend.

b) He’s a living the legend.

c) He’s a living legend.

d) He’s a the living legend.


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Question - 5 : কাটাকাটি করতে পারবেন না।

a) You can’t pens through.

b) You can’t pen to through.

c) You can’t pen throughs.

d) You can’t pen through.


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Question - 6 : Through thick and thin---- means

a) not clear in understanding

b) under all conditions

c) to make thick and thin

d) of great density


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Question - 7 : আমি ইংরেজিতে ভাল নই |

a) I am not good in English.

b) I am not good on English.

c) I am not good to English.

d) I am not good at English.


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Question - 8 : মাসিক মোহাম্মদী কোন সালে প্রকাশিত হয়?

a) ১৯২৬

b) ১৯২৮

c) ১৯০৩

d) ১৯২৯


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Question - 9 : The light have been blown - by the strong wind.

a) off

b) up

c) away

d) out


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Question - 10 : জনসংখ্যা বৃদ্ধির ফলে ব্যাপকভাবে ক্ষতিগ্রস্ত হচ্ছে-

a) সাংস্কৃতিক পরিবেশ

b) বায়বীয় পরিবেশ

c) সামাজিক পরিবেশ

d) প্রাকৃতিক পরিবেশ


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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.