What is carpel ? Write the function of its various parts.
Explain how, offspring and parents of organisms reproducing sexually have the same number of chromosomes.
Give an example of a flower which contains both stamens and carpels.
List three techniques that have been developed to prevent pregnancy. Which one of these techniques is not meant for males? How does the use of these techniques have a direct impact on the health and prosperity of a family?
What is vegetative propagation? State two advantages and two disadvantages of this method.
What is variation? How is variation created in a population? How does the creation of variation in a species promote survival?
Write one main difference between asexual and sexual mode of reproduction. Which species is likely to have comparatively better chances of survival - the one reproducing asexually or the one reproducing sexually? Give reason to justify your answer.
Describe in brief the structure and function of placenta?
Write the function of following parts in human female reproductive system: