A colonoscopy is a screening test for colon cancer, recommended as a routine test for adults over age . One study1 provides the best evidence yet that this test saves lives. The proportion of people with colon polyps expected to die from colon cancer is . A sample of people who had polyps removed during a colonoscopy were followed for years, and of them died from colon cancer. Does this provide evidence that the proportion of people who die from colon cancer after having polyps removed in a colonoscopy is significantly less than the expected proportion (without a colonoscopy) of:

What best explains whether bromine (br) or neon (ne) is more likely to form a covalent bond? bromine forms covalent bonds because it has seven valence electrons, but neon has eight valence electrons and already fulfills the octet rule. bromine forms covalent bonds because it has many electron shells, but neon has only two electron shells and is tightly bound to its electrons. neon forms covalent bonds because it can share its valence electrons, but bromine has seven valence electrons and can gain only one more electron. neon forms covalent bonds because it has only two electron shells, but bromine has many electron shells and will lose electrons in order to fulfill the octet rule.

Which of the following is required of a new drug?me

Which organism can most likely be classifild as domain bateria