Proteins and nucleic acids absorb light maximally at 260 nm; hence, proteins protect cells from UV effects
Indicate whether the statement is true or false.
Answer: FALSE
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Which of the following is a cause of drug-specific resistance in disease-causing organisms?
A) inappropriate hygiene B) nosocomial infection C) poor immunity D) indiscriminate nonmedical use of antimicrobials
Voles with a large number of receptors in their brains for oxytocin are likely to be:
a. aggressive b. territorial c. promiscuous d. migratory e. monogamous
Complement proteins
1.chemically detect the presence of pathogens. 2.attract phagocytes. 3.form membrane attack complexes. 4.work with cytokines to trigger inflammation. 5.all of the choices
Answer the following questions true (T) or false (F)
1. Because they form linings or coverings, epithelial tissues always face an open area or an exterior environment. 2. Smooth muscle may be moved by either voluntary or involuntary control depending on location in the body. 3. Subcutaneous fat tissue in humans is located mainly in the dermis.