What are those organisms called which bear both the sex organs in the same individual? Give one example of such an organism.

Would a Planaria cut vertically into two halves regenerate into two individuals? Complete Figure $D$ and $E$ by indicating the regenerated regions.

What happens when the following situations are initiated:
$(a)$ $A$ $Planaria$ is cut into three different pieces.
$(b)$ $A$ leaf of the $Bryophyllum$ with notches falls on the soil.
$(c)$ Testosterone is released in the male reproductive system.

In the given figure,label the parts and mention their functions:
$(a)$ Production of egg
$(b)$ Site of fertilisation
$(c)$ Site of implantation
$(d)$ Entry of the sperms

What would be the ratio of chromosome number between an egg and its zygote? How is the sperm genetically different from the egg?

What is the advantage of reproducing through spores?