12. is the term used when transport proteins are required to move particles across the membrane.

How does the release of trapped gases in magma cause a volcano to erupt? a. they push the magma up the pipe and then are reabsorbed into the magma chamber. b. they cause the magma to change chemically into lava. c. the gases form vents that allow the magma to flow out. d. the gases rush out and carry the magma with them.

What are some characteristics of a free enterprise economy?

Which would be the most useful source of evidence to support mcneill's contention?