Give an adaptation found in nature for each organism and explain how this adaptation helps this organism to survive and reproduce in the following environments: A Saguaro cactus:
A grizzly bear:
An orb spider:
A robin:
A jellyfish:

Witch type of microscope is used to view very small cell components like proteins and dna?

List five ways we are indebted to phytoplankton

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