Biology
Which of the following is responsible for transport of food and other substances in plants?

Xylem
None of these
Phloem
Chloroplast

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Biology
Which one of the following statements regarding haemoglobin is correct?

Haemoglobin present in RBC can carry only oxygen but not carbon dioxide
Haemoglobin is only used for blood clotting and not for carrying gases
Haemoglobin of RBC can carry only carbon dioxide
Haemoglobin of RBC can carry both oxygen and carbon dioxide

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