Choose the correct statement s 1 Lymph is a yellow fluid containing lymphocyte cells ...........

Science Affairs Zoology

Choose the correct statement(s)

1. Lymph is a yellow fluid containing lymphocyte cells, which fight against infection.

2. When the heart is relaxed blood from large veins called vena cava pour into it.

3. Pace maker replaces special muscle cells of heart that initiate heart beat and have stopped functioning.

4. ECG is the graphic recording of the electrical changes during heartbeat.

Which of the statement(s) given above are correct?

1 only

1 and 2

1, 2 and 3

1, 2, 3 and 4

All the statements are correct.

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