(ii) Draw a human sperm and label the acrosome and middle piece. Mention their functions. 10. Briefly explain the events of fertilisation and implantation in an adult human female. (ii) Comment on ...

The image shows two-photon imaging of Arabidopsis pistils. The inverted upper pistil is untreated, while the lower pistil is transparent. Pollen tubes are visible inside the pistil, allowing to see ...