With the help of suitable diagram describe the logistic population growth curve.

What is oogenesis? With the help of suitable diagram, describe the steps involved in this process.

With the help of a suitable diagram describe the structure of a nucleosome.

What is spermatogenesis? With the help of a suitable diagram describe different steps involved in this process.

Whit a suitable diagram, describe the organisation of mammary gland.

With the help of suitable diagrams, explain how the age structures determine the trend of population ?