Need biology help asap

What causes the force that pushes magma from the magma chamber through the pipe and vent of a volcano?

Plz genetic engineering can be applied to many fields including medicine and agriculture. which of the following is a medical application of genetic engineering? a. giving crop plants recombinant dna so that they would be resistant to herbicides. b. examining a persons pedigree to determine whether they can carry a gene for a genetic disease. c. analyzing a persons dna to see how closely they are related to another person. d. certain genes into bacteria so that they will produce a needed medicine.

Aflame cell is at the end of each tubule of the nephridium malpighian tubules kidneys none of the above