The plant starts life as a seed, which germinates and grows into a plant. The mature plant produces flowers, which are fertilised and produce seeds in a fruit or seedpod. The plant eventually dies, leaving seeds which germinate to produce new plants.
The process of making multiple copies of a gene by inserting it into a host genome and culturing the host is an example of gene cloning.
Transpiration is the process where plants absorb water through the roots and then give off water vapor through pores in their leaves, so D would be your answer
Since bees and butterflies both pollen are flowers, the growth (population) of flowering plants would become less common without the pollen being spread.