Answer:
So the egg definitely came first.
Explanation:
Dinosaurs laid eggs, the fish that first crawled out of the sea laid eggs, and the weird articulated monsters that swam in the warm shallow seas of the Cambrian Period 500 million years ago also laid eggs. They weren't chicken's eggs, but they were still eggs.
Answer:
The plant stores them as starch
Explanation:
A typical plant synthesizes sugars from photosynthesis by using water and carbon dioxide.

Parts of the sugar synthesized via photosynthesis is used to generate energy during respiration. The energy generated is useful for other metabolic processes in the plant's body.

<em>The remaining sugar is utilized in the synthesis of starch and stored in the various tissues of the plant.</em>
I believe the answer you're looking for is fertilization. :D