Coming up with the theory of evolution
Hybrid = having one recessive and one dominant allele
This means that all of the flowers must have the genotype Bb.
Knowing this, let's make a Punnet Square.

As you can see, 3 of these are going to have the dominant trait and 1 is going to have the recessive trait. This corresponds to our 3:1 in our question, meaning that the black seeds must be dominant and the brown ones recessive.
Because they are dominant, the genotype for black seeds could be
BB <em /><em>or</em>
Bb.
Answer:
i willl answer this science question in the comments section
Explanation:
Photosynthesis: <span>6CO2 + 6H2O + light energy = C6H12O6 + 6O2.
</span>
Cellular Respiration: C6H12O6 + O2 + H2O + ATP
I hope this helps you! Good luck :)