Martin is a 58-year-old smoker who was admitted to the hospital with worsening shortness of breath over the last 2 days. he states that he is having some chest discomfort. the nurse asks him further about this in order to characterize whether this may be cardiac related, musculoskeletal related, or respiratory related. martin states that when he breathes in, he feels as if the air passing into his lungs is burning him. it is also very painful to swallow. based on what martin is stating, which illness does the nurse suspect is causing martin's chest discomfort?

Explain how ancient whale fossils found in eqypt are believed to support the theory of evolution.

Molecular models of two different substances are shown below. in the molecule on the left, the oxygen atom pulls on electrons more strongly than the hydrogen atoms. in the molecule on the right, the two oxygen atoms pull on the shared electrons with the same strength. water molecule, h, o oxygen molecule, oz when the two substances are put in the same container, they do not attract each other. why does this happen? a. they both contain oxygen. b. one is polar and one is nonpolar. c . they are both polar. d. they contain different elements.

Cold case files recently began re-investigating an old murder case. the murder took place in the park; a young man, james, was hit over the head with a brick and killed. police suspected the jealous former boyfriend of james' wife, karen. whoever killed james may have washed their hands in a near-by bird bath as detectives found blood in the bird bath. since the murder took place before dna fingerprinting was available, the suspected killer, ronnie, went free. detectives are now reviewing the blood evidence using dna fingerprinting. based on the dna fingerprints of all possible suspects, who is james' killer?