It provides a scientific explanation to the Survival of the Fittest. Animal species must adapt to their environment to survive the wild
Could you attach a picture of the painting so i can better answer this?
Your answer is correct. Chitin provide the strength to insect exoskeletons. Cellulose is the strength for plant. Starch and glycogen are energy sources for life.
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the sun and earths interior I'd say
The right answer is Carbon fixation
Rubisco (or ribulose-1,5-diphosphate carboxylase / oxygenase) is a plant enzyme involved in the Calvin cycle and more particularly in the fixation of carbon dioxide.
Rubisco, located in chloroplasts, is the most abundant protein in plant biomass and even in total biomass.