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Question - 1 : মাদার তেরেসা কোন দেশে জন্মগ্রহন করেন ?

a) আলবেনিয়া

b) মেসেডোনিয়া

c) সার্বিয়া

d) সার্বিয়া


Discus in Board
Question - 2 : তোমার আরো বেশি ব্যায়াম/অনুশীলন করা উচিত |

a) You should done more exercise.

b) You should do more exercise.

c) You should do more exercised.

d) You should to do more exercise.


Discus in Board
Question - 3 : Climate is a _ of the environment.

a) rank

b) situation

c) size

d) state


Discus in Board
Question - 4 : x+1/x=√3 হলে x3+1/x3এর মান কত?

a) 0

b) 2

c) 4

d) 6


Discus in Board
Question - 5 : He has been ill - Friday last.

a) in

b) since

c) on

d) from


Discus in Board
Question - 6 : The word 'Ecological' is related to-

a) Atmosphere

b) Pollusion

c) Environment

d) Demography


Discus in Board
Question - 7 : স্বাধীনতা পদক প্রাপ্ত ব্যক্তিত্ব হলেন -

a) সৈয়দ শামসুল হক

b) সৈয়দ আলী আহসান

c) শামসুর রাহমান

d) সতীন সরকার


Discus in Board
Question - 8 : 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


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Question - 9 : সে রামকে বলে বাইরে গেল |

a) He took Ram permission when he went out.

b) He took Ram’s permission when he went out.

c) He told Ram’s permission when he went out.

d) He took Ram’s permission when he go out.


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Question - 10 : বাংলা সাহিত্যে কখন গদ্যের সূচনা হয় ?

a) উনিশ শতকে

b) ষোড়শ শতকে

c) ত্রয়োদশ শতকে

d) নবম


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.