21 year-old man with a 40-pack-year smoking history and recent complaints of angina upon exercising, collapsed while running a marathon. Paramedics arriving at the scene found him unconscious, not breathing, and without a pulse. CPR was successfully performed and Micheal was transported to the hospital. An ECG was suggestive of an anterior wall myocardial infarction, and he was given an intravenous solution of tissue plasminogen activator (TPA). Elevated blood creatine phosphokinase (CPK) levels measured over the next 3 days confirmed the diagnosis. Coronary angiography was performed a week later, revealing the following: Circumflex artery: 25% blocked
Right coronary artery: 30% blocked
Left anterior descending artery (LAD): 95% blocked
("Anterior intraventricular artery")

Required:
a. What is a myocardial infarction?
b. What is the cause of Micheal Lee's myocardial infarction?

Recently, crops of vegetables such as lettuce and green onions have been contaminated, while they are still on the farm, with bacteria that cause food poisoning. how will science influence the way the government responds to prevent an increase in food-borne diseases? because science has shown that lettuce and green onions are not nutritionally valuable, the government may pass laws that ban the sale of lettuce and green onions. because science has shown that there is no way to prevent bacterial contamination, the government may pass laws that punish businesses that buy lettuce and green onions. because science has shown that the washing of hands prevent the spread of infectious diseases among people, the government may pass laws that require hand washing by everyone who handles food. because science has shown there are ways to find the source of the contamination, the government may pass laws that require farm practices that reduce the contamination of lettuce and green onions.

What is used as a template during replication? a- mrna b- trna c- rrna d- dna

Both destructive and constructive, the natural event seen here, is important in destroying and creating landforms on earth. what is this event called? a) deposition b) flooding c) landslide d) sedimentation