Answer:
Each of her parents must have one recessive gene for blond hair color
Explanation:
- Blond is a recessive trait
- Since Silvia is blond this means she has both copies of the recessive gene for hair color
- Therefore, both her parents have a recessive gene for blond hair and passed it down to her.
- The parents don't have blond hair because their dominant gene for browns masks the recessive gene for blond.
Carrying capacity is the paramount number of a particular species that the earth or ecosystem can hold while limiting factors are the biotic and abiotic factors that confines or limits the growth of the living organism.
More the amount of limiting factor, greater will be the number of growth of the organism as the raw materials to hold life would be enough to sustain these many number of organism. Therefore, limiting factor governs the carrying capacity of various organisms on earth.