red blood cell contains hameoglobon to carry oxygen to the cells. the outer membrane to let oxygen diffuse through easily. shape increases the surface area to allow more oxygen to be absored efficently. where root hairs have large areas to ensure that water molecules diffuse completely in the roots
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Answer:
red blood cell contains hameoglobon to carry oxygen to the cells. the outer membrane to let oxygen diffuse through easily. shape increases the surface area to allow more oxygen to be absored efficently. where root hairs have large areas to ensure that water molecules diffuse completely in the roots