Where are the ovaries located in a female?

In which type of reproduction do genetic variations occur in the offspring?

Give reasons as to why the following processes are different from each other:
$(a)$ Fission in $Amoeba$ and $Plasmodium$.
$(b)$ Binary fission and Fragmentation.

Why does the lining of the uterus become thick and spongy every month?

Draw the diagram of a flower and label the four whorls. Write the names of gamete-producing organs in the flower.

In the process of reproduction as used in $Spirogyra$,the organism splits itself into small pieces.
$(a)$ What is this process of reproduction called?
$(b)$ Will this type of reproduction be asexual or sexual reproduction? Answer with reason.
$(c)$ Is this process same as regeneration? Give reasons.