do cockroaches die when put in hot water?
453770
yes.  i have done it with boiling water (trust me.. i had no choice).  they died immediately.
1167653
Well it depends if you microwave it then water the plant while it is still hot then yea it will kill the plant, the hot water will kill the plant you will scalded the rotes. But if you zap it then let it cool it would be just like any other cool water. As long as the plant is getting the other nurturance and light it needs it will have no affect at all.
152507
It depends on the insect. Some die off leaving eggs behind to hatch next season (like the Praying Mantis). I have heard some critters replace the water in their bodies with glycerin so they don't freeze during the cold months.
1017672
Because insects use a different type of respiratory system than people do.  Rather than breathe air in through centralized nostrils to their lungs, they breathe air in through a de-centralized network of smaller tubes located all over the surface of their body known as spiracles.\n\nBecause of the large area they take oxygen in through, they are able to store enough air to breath for an extended period of time when deprived of oxygen, as they are when they're trapped underwater.  The water's surface tension keeps it from draining into the spiracles on their body, which is why it simply doesn't flood their respiratory system and drown them.  \n\nUsing this method of respiration allows roaches extra time to find their way back to a surface where they can get more air, and cockroaches aren't too particular about where they live, being well armored and equipped to survive in just about any conditions.\n\nSo, when you flush the roach, it just holds its breath, goes along for the ride, and when it gets to the sewer either drowns eventually or just crawls its way to the surface and moves on with life.\n\n\nP.S.-- This is also why pesticide makers have to either find an ingredient to break down the surface tension of water they suspend their poisons in or just go with another liquid base for their poisons... if the surface tension of the water is normal, the poison just sits on the outside of the roach's dead armor shell, and it holds its breath and waits until it dries off and the poison is no longer an issue.\n\nP.P.S.-- Have you seen how misclassified most of the questions on Yahoo Answers are?  Folks are asking jokes in philosophy, biology questions in engineering, sexual health questions in cooking, cooking questions in religion, and questions about dogs in the math section.  I'd be willing to bet a lot of people don't bother to pay very much attention to where the question is classified any more.
269404
cockroaches and polar bears...  ;)
312227
Any bacteria or viruses die and hot temperatures and mot hot tubs are kept at 104 degrees.  I think that is pretty hot.
325207
The cockroach is an omnivore, that is, it eats everything edible, animal and vegetable. So if we do not move around too much while sleeping they might be inclined to nibble on our earlobes at night. They are rarely aggressive enough to attack us while we are awake. When visiting Tulane University in New Orleans many years ago I slept in a dormitory room and cockroaches were flying down from the ceiling onto my head. I would guess that these large American cockroaches, _Periplaneta americana_, would be capable of taking a good bite out of me.  Only the larger species could take a bite through our skin. Of course the skin of children is much more tender and vulnerable to a roach bite. If the bite becomes infected it is possible for it to leave a scar.
359248
If we don't check ourselves it'll be time for another speices to take over. I hear cockroaches can survive lots of hard radiation and industrial pollutants.
788189
That would depend on how far below the boiling point the water temperature actually was. Some viruses are sensitive enough to temperature change that once they have been heated to above 70 degrees C their infectivity drops dramatically. Some bacteria are also able to be inactivated below the boiling point of water but it depends on the bacterium and, of course, the temp that you are at.
975499
A) They probably do die, but we just don't get the reports.\n\nB) The problem is that people in places where it doesn't generally get that hot are not prepared for extreme heat, whereas folks who deal with it all the time are.
984260
LOL, I'm assuming you mean cockroach. This reminds me of something that happened when I was just a child. I'd say age 8. I remember my mom putting on her hairdryer. They had those shower cap looking things with a big tube attached to it. Anyway, next thing I know she rips that thing off her head. Opens the drawer and grabs a q-tip. Sticks that q-tip in her ear. Next thing I know a spider comes running out of her ear along that q-tip. lol. Oh man that was 40 years ago. I think it traumatized me. I'll never forget that moment. Try a q-tip. Go easy as to not squish it. If you meant another kind of roach. Well that's another story I'll save for another time. =)
729714
Amoebae react to danger usually by moving out of the way.  If something is to hot or cold, they will...move away from it, if they can't and it's too hot or cold they'll die.  They don't really "drink" but they absorb water through their membrane...they usually live in water, so that's not a problem.\n\nHave you ever seen them eat?...It's pretty interesting...they engulf bacteria...and a few million years back, something like that kicked off endosymbiosis...which is something I will not scare you with right now. ;)
661978
are a health hazard not only because of the risks posed by cockroach antigens to asthma sufferers, but also because they can carry disease-causing germs and because some of the methods traditionally used to eliminate them cause additional health hazards. \nAny home can have cockroaches. However, there are steps you can take to prevent cockroaches from becoming a problem in your home; identify the extent of and solutions to any potential cockroach problem; and reduce or eliminate cockroach problems.
154847
huh? liek roach? eww i hate those i get chills sometimes. put a paper towle over it, step on the towel, swipe it up and flush it down the toilet!
182054
Cockroaches are mainly nocturnal, and will run away when exposed to light. A peculiar exception is the Oriental cockroach which is attracted to light, thus making it a far more annoying pest. Roaches are called the custodians of nature. They only live in houses where there are crumbs to eat or the garbage can is uncovered. They lay eggs inside the house's hollow walls.
1023731
Bacteria in the water has killed them off.
347004
cockroach respires with the help of air tubes called trachae which is spread all over the body.Trachae opens to the exterior by means of 10 pairs of stigmata or spiracles which have valves.Air enters stigmata and is directly taken into the tissues where exchange of gases takes place.Blood has no role to play in respiration as in other animals and so respiration in cockroach(in insects in general) is said to be direct and more efficient than in any other animal.