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Valves are present in the veins....

Valves are present in the veins.

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Valves are thin walled with semilunar valves to prevent backward flow of blood .
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GURUKUL PUBLICATION - MAHARASHTRA PREVIOUS YEAR PAPERS- MARCH 2019-SECTION C
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  2. Connecting link between glycolysis and TCA cycle is

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  3. Describe the structure of a human kidney with the help of a labelled d...

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  4. Describe the reflex action with the help of labelled diagram.

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  5. Define pollution . " Industries are pouring poison in water" - Expalin...

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  6. With the help of a suitable diagram , describe ultra structure of the ...

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  7. Describe the conducting system of human heart.

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  8. Lymphatic vessels are milky in appearance.

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  9. Monocytes are called scavengers.

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  10. The wall of left ventricle is thicker than right ventricle.

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  11. Valves are present in the veins.

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  12. Pulmonary veins carry oxygenated blood.

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  13. Which phenomenia gives 2 : 1 ratio instead of 3 : 1 ratio ? Describe w...

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  14. A pea plant homozygous for yellow round seed is crossed with its reces...

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  15. After puberty human female shows cyclic changes in her reproductive sy...

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  16. Scrotal sac serves as thermo regulator.

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  17. Corpus luteum gets converted into corpus albicans in absence of fertil...

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  18. Missing of menses is the first indication of pregnancy.

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  19. Give reasons : Surgical sterilization is a permanent method of birth ...

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  20. Human egg is microlecithal.

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