A nurse is caring for two patients, one has pneumonia, and the other was in a car accident and has a broken leg and arm. The patient with pneumonia is having a severe coughing episode, so the nurse
rushes into the room and suctions the mucus out of the patient's' trachea so he may breathe better.
Unfortunately, she doesn't put on gloves or a mask. Four days later, the patient who had been in a car
accident develops a severe cough and complains of difficulty breathing. His chest x-ray shows
pneumonia. Using the chain of infection, describe how this patient contracted pneumonia.

Out of the seven main animal groups (fish, mammals, birds, insects, reptiles, amphibians, and arachnids), how many contain members with internal backbones? a. 5 b. 3 c. 7 d. 1

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?

The diagram shows the development of the oocyte and the follicle during the menstrual cycle. identify at which stage in the cycle the hormone levels are at their highest and most active.