Which of these is not a characteristics of a wind pollinated flowers?

A germinating seed requires oxygen which is essential for

Which of these products obtained from analyzing sweat from skin is not an excretory product?

In a breeding program a cross was made between two true breeding cow-pea types: one with round seeds and the other with wrinkled seed. If roundness is dominant why wrinkleness is recessive, in the first filial generation all the seeds produced will be