WAEC - Biology (2001 - No. 20)
Which of the following pairs of structures does not perform similar functions?
Lungs and spiracles
Root hair and mammalian hair
Feathers and scales
Contractile vacuole and kidney
解释
Root hair: a small finger-like projection of cells near the tip of root that are important is mineral uptake
mammalian hair does not function in mineral uptake.
mammalian hair does not function in mineral uptake.