Agroup of parrots is 20% dd, 40% dd, and 40% dd. what is the allele percentage of d in this group? a. 40 percent b. 50 percent c. 60 percent d. 80 percent

metamorphism is the change of minerals or geologic texture (distinct arrangement of minerals) in pre-existing rocks (protoliths), without the protolith melting into liquid magma (a solid-state change). the change occurs primarily due to heat, pressure, and the introduction of chemically active fluids. i hoped i !

i think that d. wind is the answer.   i missed the question when i answered a. currents.