Fill the blanks. (Evolution) 1) is vital to the long-term survival of a species and can be caused by the of genes during gamete formation.

2)This can occur in 2 ways:
a. Comparable pieces of homologous chromosomes are exchanged
during meiosis in
b. Chromosomes are randomly aligned during meiosis in

Subduction zones form when an oceanic plate collides with another oceanic plate or continental plate. the continental crust is lighter and less dense than oceanic crust. continental crust's density is approximately 2.7 grams per cubic centimeter. oceanic crust is thinner and the average density is about 3.3 cubic centimeters. when the two crustal plates converge the oceanic plate always bends and subducts beneath a continental plate. once the oceanic crust subjects, the rocks are subjected to changes in heat and pressure. because of this, we would expect to find rocks in the area of a subduction. a) clastic b) igneous c) metamorphic d) sedimentary