Lucas goes stand-up paddleboarding three days a week and paddles at a leisurely pace. his local surf shop is hosting a stand-up paddleboarding race at the end of next month. how can lucas apply the sport principles to get in competition shape for the race? a. he can focus on progression, increasing the intensity and time he spends on the paddleboard. b. he can continue paddleboarding three times per week at the same pace to avoid reversibility. c. he can start to lift weights and run a few days a week to add specificity to his training. d. he can explore other types of physical activity so paddleboarding doesn't become tedious.

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.