Questions and Answers
What is the main reason for the red color of blood?
Presence of respiratory pigment haemoglobin in RBCs
Which organelle is absent in mature mammalian RBCs?
Nucleus
What is the shape of mature mammalian RBCs?
Biconcave and disc-shaped
What unifying themes tie together the field of biology?
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What is the significance of evolution in biology?
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What allows organisms to move, grow, and reproduce?
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At what levels of organization do biologists study life?
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What do biologists use to make observations and pose questions?
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