If the number of trees on earth continues to decrease significantly, what might be the result? a. less oxygen released into the atmosphere and more co2 buildup; erosion could occur without the tree roots to hold the earth in place; loss of habitat of many animals and diversity could decrease b. balance of nitrogen and phosphorus in the ecosystem and the movement of water through the ecosystem could be thrown out of balance c. a and b d. none of the above

Which is an example of a vestigial structure? a. tail of a monkey b. fin of a fish c. flower of a plant d. tailbone of a human

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

Collin would like to use the data a coworker has entered in a database. the problem is the coworker's database software is different from collin's. collin should