A company has many genetically engineered poplar trees around its factories. Which best describes the poplar trees? They are being used for phytoremediation.
They have transferred their genes to a nontarget species.
They have reduced the effectiveness of pesticides.
They are being used for disease resistance.

answer; a male inherits only one allele of the x-linked gene controlling hair color;

answer; i believe the correct answer is (a)0

not sure if this what   you'r looking for would be percent composition

igneous rocks which formed by the crystallization of magma at the surface of the earth called extrusive rocks. they are characterized by fine-grained textures because the rapid cooling at or near the surface did not provide enough time for large crystals to grow.