As part of a health center educational program on tuberculosis (TB), skin tests are offered as a screening measure. Which statement by a participant to the nurse requires further exploration by the nurse? 1. "My grandfather had tuberculosis and died from it." 2. "When I have these skin tests, nothing ever shows up." 3. "I had a shot for tuberculosis 5 years ago." 4. "I won’t take medicine even if they do find something."

Indicate whether the following statements about the biases in the fossil record are true or false. a) inland species are more likely to be preserved than marine species b) organisms with hard body parts are more likely to be preserved than are those composed soft tissues. c) species that existed over a larger area are more likely to be preserved than species existing over a smaller area. d) organisms that lived very long ago are more likely to be found as fossils than organisms that lived relatively recently e) the fossils of larger organisms are more likely to be found than the fossils of smaller organisms

Radiometric dating is used to tell the absolute age of materials by studying the decay rate of radioactive isotopes. the decay rates of isotopes are constant and are expressed as .

What is the correct term for an area of rotating currents in an ocean? when ocean currents combine, they create an area of rotating currents called an