Draw the well labelled diagram of a mature human sperm and label its parts.

Draw well labelled diagram of Marchantia.

Draw a well labelled diagram of a DNA helix.

Draw a labelled diagram of a neuron.

Draw a labelled diagram of human heart.

Draw a labelled diagram of synapse.

Draw a labelled diagram of a neuron

(a) Name the hormone that initiates spermatogenesis in humans. Describe the process of spermatogenesis in spermatogenesis in sequence mentioning the ploidy of the cells at each step. (b) Draw the diagram of a mature human sperm and label the parts that : (i) helps it reaching to the ovum . (ii) providing energy for it to reach the ovum. (iii) helping it to gain entry into the ovum.

Draw a labelled diagram of human ovum.

Draw a labelled diagram of a nephron.

Draw a well labelled diagram of a eukaryotic cell.