Question

B. Fill in the blanks.
1. The red blood cells have red colour due to the presence of____________
2.________________ are called soldiers of the body
3. ______________veins carry oxygenated blood
4.____________have thick walls and narrow lumen.
5. Urine contains nitrogenous wastes in the form of______________
6. Skin helps in the excretion of_______________ and____________​

Answer 1

Answer:1.haemoglobin

2.wbc

3.pulmonary

4.arteries

5.urea

6.sweatby sweat glands

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BRAINLIEST

Explanation:

Answer 2

Answer:

1) hemoglobin

2) The white blood cells

3) pulmonary and umbilical veins

4) Resistance arteries

5) urea

6 )sweat , wastes

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