Answer: This material will interact when the galaxies collide. ... There is also friction between the gas in the colliding galaxies, causing shock waves that can trigger some star formation in the galaxies. These processes can radically affect the galaxies. For example, two spiral galaxies can merge to form an elliptical galaxy.
These are symptoms of HEAT EXHAUSTION. Heat exhaustion usually occur as a result of over heating of the body. Symptoms may also include heavy sweating,slight fever, excessive thirst, fainting,nausea, rapid pulse.etc.
Heat exhaustion can be prevented by protecting oneself from excessive heat.
Think about this: a recessive trait won't show up if the other allele is wild type, so the fact that couple 3 / 4 have children that don't show the trait is the best evidence.