Total Question


599

Compleated Test


10470

Total Syllabus


60

Visitor Counter


1793
Question - 1 : 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 - 2 : START-2 কি?

a) বানিজ্য সংক্রান্ত একটি চুক্তি

b) কৌশলগত অস্ত্র হ্রাস সংক্রান্ত চুক্তি

c) টিভিতে সম্প্রসারিত একটি সিরিয়াল

d) এর কোনটিই নয়


Discus in Board
Question - 3 : He divided the money - the two children .

a) between

b) among

c) in between

d) over


Discus in Board
Question - 4 : নতুন কোনো খবর আছে?

a) Anything new on going?

b) Going on Anything new?

c) On going Anything new?

d) Anything new going on?


Discus in Board
Question - 5 : কোথায় দিন-রাত্রি সর্বত্র সমান ?

a) নিরক্ষরেখায়

b) মেরু অঞ্চলে

c) উওর গোলার্ধে

d) দক্ষিণ গোলার্ধে


Discus in Board
Question - 6 : লঞ্চ ও স্রোতের গতিবেগ যথাক্রমে ঘণ্টায় ১৮ কি.মি. ও ৬ কি.মি.নদী পথে ৪৮ কি.মি. অতিক্রম করে পুনরায় ফিরে আসতে সময় লাগবে-

a) ৬ ঘণ্টা

b) ৫ ঘণ্টা

c) ১০ঘণ্টা

d) ৮ ঘণ্টা


Discus in Board
Question - 7 : পৃথিবীতে কখন ল্যাপটপ কম্পিউটার প্রবর্তিত হয় এবং কোন কোম্পানী এটা তৈরি করে?

a) কমপ্যাক, ১৯৮৫

b) এপসন, ১৯৮১

c) আইবিএম, ১৯৮৩

d) অ্যাপল, ১৯৭৭


Discus in Board
Question - 8 : "If winter comes, can spring be far behind?\" These lines were written by _.

a) Shelley

b) Eliot

c) Forst

d)


Discus in Board
Question - 9 : বিলিরুবিন তৈরি হয়-

a) যকৃতে

b) প্লীহায়

c) কিডনীতে

d) পিওথলিতে


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.