Finding shed skins.As cockroaches grow, they shed their exoskeletons, leaving behind small, translucent bits ofskin. Seeing eggs or egg cases.Cockroaches typically lay their eggs in areas that are not easily accessible to humans, such as cracks, crevices, or the space behind appliances. Are Coc...
How does E. coli become resistant to antibiotics? How are pathogens spread? How does Yersinia pestis attack and spread? How have antibiotic resistant strains of bacteria evolved? How might a bacteriophage affect the virulence of a bacterium?
New to working from home? Here's how to avoid undue strain on your neck, back and the rest of your body. Does your neck suddenly hurt? Lower back barking at you? What’s that tingling in your wrist all about? If you are experiencing any of these unusual aches, pains and other physi...
How does E. coli become resistant to antibiotics? How do helminths evade the immune system? What is a propagated epidemic? How does Yersinia pestis attack and spread? How does HIV mutate? How can bacteria acquire drug resistance besides through mutation?
A food allergy can negatively affect your health. It occurs when an individual is exposed to a particular food. The first time you eat the offending food, your immune system creates disease-fighting antibodies. When you eat the food again, your body treats it as a foreign invader and attempt...
How Long Does It Take for Antibiotics to Work? When you take antibiotics, they start working right away. But how long it takes for you to feel better depends on what kind of infection you have and how bad it is. Usually, you'll start feeling better within a few days, but it might ...
How does the pH level of a pool affect chlorine's effectiveness? The effectiveness of chlorine depends on the pool's pH level, with an ideal range between 7 and 8 ensuring that hypochlorous acid, the more effective bacteria killer, is present in sufficient quantities. How can you reduce the...
Genes required for the production of various toxins and molecules important for colonization during infection may also be found encoded on plasmids. For example, verotoxin-producing strains ofE. coli(VTEC)appear to have acquired the genes encoding the Shiga toxin from its gram-negative relativeShigel...
What is the difference in how a virus and bacteria replicate and affect cells of the body? How do cytotoxic T cells destroy pathogens? How do microbes educate our immune system? Give examples. How does E. coli become resistant to antibiotics? How are viruses involved in bacterial transduction...
You’re zoned out at a red light when the car behind you beeps as if to say, “Snap out of it! The light turned green.” If you can relate, you’ve hypnotized yourself in a way. “Hypnosis is the process of going into a trance state,” explains Dr. Eric Spiegel, a clinical ps...