When thinking about whether a tool is practical, you should a. look at all of the components of the tool, determine whether it gathers the information you need, and rate how easy it'll be to use b. ask other people who have used the tool what it's like, use the tool yourself, and determine whether you like using it or not c. read the instructions to make sure you understand them, take a course to learn how to use the tool, and use the tool once to see if it works for you. d. read the instructions, rate how easy the tool will be to use, and figure out if the information you'll gather is useful.

Describe some of the common health conditions associated with air pollution.

Poliovirus is an rna virus of the picornavirus group, which uses its rna as mrna. at its 5' end, the rna genome has a viral protein (vpg) instead of a cap. this is followed by anontranslated leader sequence, and then a single long protein-coding region (~7000 nucleotides), followed by a poly-a tail. observations were made that used radioactive amino acid analogues. short period use of the radioactive amino acids result in labeling of only very long proteins, while longer periods of labeling result in several different short polypeptides. what conclusion is most consistent with the results of the radioactive labeling experiment? a) host cell ribosomes only translate the viral code into short polypeptides.b) the rna is only translated into a single long polypeptide, which is then cleaved into shorter ones.c) the rna is translated into short polypeptides, which are subsequently assembled into large ones.d) the large radioactive polypeptides are coded by the host, whereas the short ones are coded for by the virus.

One way to take a more active role in your health is to schedule an appointment for a physical