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What are Hemoglobin? (also known as Hb or Hgb)

Red protein for transporting oxygen to muscle cells

White blood cells

Red blood cells

Red protein for transporting oxygen in blood

Hemoglobin is a protein that can be found in blood & carries oxygen from the lungs to the rest of the body. (Not only muscles)

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Anil Wadghule wikipedia → Hemoglobin

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Answers by country

the United States

10%

0%

5%

84%

19

the United Kingdom

14%

0%

7%

78%

14

Poland

24%

2%

18%

54%

343

Nigeria

8%

0%

50%

41%

12

India

48%

4%

12%

36%

25

Germany

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50%

0%

14

How do baby birds get oxygen inside their eggs?

They have a large oxygen supply from the start

Oxygen is created during protein reduction

Oxygen comes in through pores in the shell

They don't need oxygen at all

How deep is the root system of a giant sequoia?

4 meters (13 feet)

20 meters (60 feet)

40 meters (130 feet)

80 meters (260 feet)

How many chromosomes does a mule have? (A horse has 64, a donkey has 62)

It is infertile and does not have chromosomes

What is the longest mountain system in the world?

none of the above