Characters transmitted from parents to offspring are present in

The pistil is intact. Cross-pollination has occurred,leading to fertilization and the formation of fruit. In a bisexual flower,despite the young stamens being removed artificially,the flower produces fruit. Provide a suitable explanation for the above situation.

$(a)$ List any two methods of asexual reproduction.
$(b)$ Explain how $Spirogyra$ reproduces.

During adolescence,several changes occur in the human body. Mark one change associated with sexual maturation in boys:

What is the function of Copper-$T$ used by some women? What is its side effect?

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.