The answer to your question is A carpel
Light aka the sun I know for a fact
The energy-rich compound needed by organism is : Carbohydrates
Carbohydrates consist of the combination of the existing Carbon, Hydrogen, and Oxygen alone.
For human, The source of carbohydrates could be found in almost every food, but the huge amount could be found in rice, potato, corn, cassava, oatmeal, etc
hope this helps
Speciation is founded on the principle of genetic mutations and
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speculated genetic possibilities</span>
Active site is the answer, i hope this helps:)