A model of cell division is shown here. A student evaluates the model and makes the claim that the cell division
increases genetic variation in the daughter cells. Which evidence from the model supports the student's claim?
A)
Chromosomes pair in step 2.
Chromatids separate in step 5.
Chromosomes are replicated in step 1.
Chromosomes exchange genetic material in step 3.

Which greenhouse gas is emitted when burn fossil fuels for energy? a.nitrogen b.oxygen c.carbon dioxide d.helium

To be or not to be that is da question

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