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Question - 1 : জনসংখ্যা বৃদ্ধির ফলে ব্যাপকভাবে ক্ষতিগ্রস্ত হচ্ছে-

a) সাংস্কৃতিক পরিবেশ

b) বায়বীয় পরিবেশ

c) সামাজিক পরিবেশ

d) প্রাকৃতিক পরিবেশ

Discus in Board
Question - 2 : বাংলা ভাষায় প্রথম সাময়িকপত্র কোনটি ?

a) সংবাদ প্রভাকর

b) দিগদর্শন

c) তত্তবোধিনী

d) বঙ্গদর্শন

Discus in Board
Question - 3 : 'There was a small reception following the wedding'. The word 'following' in the sentence above is a/an -

a) adjective

b) adverb

c) Preposition

d) noun

Discus in Board
Question - 4 : কোন বিদেশী পত্রিকা বঙ্গবন্ধুকে 'রাজনীতির কবি' (Poet of Politics) উপাধি দিয়েছিলেন?

a) নিউজউইকস

b) টাইম

c) দি ইকনমিস্ট

d) গার্ডিয়ান

Discus in Board
Question - 5 : কে 'লৌহ মানবী' বলে পরিচিত?

a) ইন্দিরা গান্ধী

b) বেগম খালেদা জিয়া

c) আং সান সুকী

d) মার্গারেট থ্যাচার

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Question - 6 : তোমার মনটা ভার-ভার মনে হচ্ছে |

a) You look rather gloomy.

b) You look at rather gloomy.

c) You look rather gloom.

d) You look rather to gloomy.

Discus in Board
Question - 7 : বাংলাদেশের ২০১৮-১৯ অর্থ বছরে বাজেটে জিডিপির প্রক্ষেপিত প্রবৃদ্ধির হার কত?

a) ৮.০০ শতাংশ

b) ৭.২৮ শতাংশ

c) ৭.৮০ শতাংশ

d) ৭.৬৫ শতাংশ

Discus in Board
Question - 8 : 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 - 9 : আপনার মালামালের ওজন বেশি হয়ে গিয়েছে |

a) Your baggaged is overweight.

b) Your baggage is overweight.

c) Your baggage is overweights.

d) Your baggage is too overweight.

Discus in Board
Question - 10 : সে নির্ঘাত জানে|

a) He knows to certainly.

b) He knows certain.

c) He knew certainly.

d) He knows certainly.

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.