An acute myocardial infarction (AMI) occurs when: Group of answer choices myocardial tissue dies secondary to an absence of oxygen. the entire left ventricle is damaged and cannot pump blood. the heart muscle progressively weakens and dysfunctions. coronary artery dilation decreases blood flow to the heart.

8) animals respond in various ways to stimuli detected through their senses. some of these responses are stimulated by the presence of danger. which of these animal responses is the best example of a response to an immediate threat? a) a rooster crows every morning at the first sign of light. b) as something approaches an octopus, it shoots a cloud of ink. c) from late fall until spring, bears hibernate to preserve energy. d) a dog is getting hot in the sunlight, so he moves to a shaded area.