This is referring to the kingdom of Fungi (sing. Fungus)
D. A struggle for existence is apparent.
If a struggle for existence is apparent, natural selection occurs because all of the weak/unfit/unadapted ones die.
Follicle<span>-stimulating hormone </span>
What determines the chemical properties is : color, hardness, luster, crystal forms, density, and cleavage.
B) This is false, because enzymes do the complete opposite.
