According to the american heart association, what would be a good estimate of the maximum heart rate for a 50-year-old male?

270 beats/minute
220 beats/minute
170 beats/minute
120 beats/minute

How do nicotine and tobacco cause cancer? by decreasing blood-sugar levels by damaging or changing a cell's dna by increasing heart rate by increasing phlegm and mucous production

You should never drive a car if you are a.taking cold medication b. suffering from the flu c. drinking alcohol d. all the above

Some viruses can be crystallized and their structures analyzed. one such virus is yellow mottle virus, which infects beans. this virus has a single-stranded rna genome containing about 6300 nucleotides. its capsid is 25-30 nm in diameter and contains 180 identical capsomeres.if the yellow mottle virus begins its infection of a cell by using its genome as mrna, which of the following would you expect to be able to measure? a) replication rateb) transcription ratec) translation rated) formation of new transcription factors