12. Which of the following statements about the different types (shapes) of galaxies is correct?

18. Some objects in space just don?t have what it takes to be a star (just like many hopefuls in Hollywood don?t.) Which of the following is a ?failed star?, an object with too little mass to qualify as a star?

4. What do astronomers think is the origin of the many irregular moons around the outer planets (irregular meaning they are orbiting backwards and/or have eccentric orbits)?

48. Why do different types of atoms (elements) give off or absorb different spectral lines?

20. Which statement about the Sun?s rotation is TRUE?

19. In recent decades, astronomers discovered stars even cooler than the traditional spectral type M stars recently. Astronomers gave these cool stars a new spectral type, L. If you wanted to go out and find more such type L stars, what kind of instrument would it be smart to use?

Hypersensitivity is the weak immune response to antigens that cause tissue enjury.

Which of the following is only professional organization that was the first to champion clinical laboratory as a profession?

Match the term with definition as it pertains to the production of antibodies

Calculate the volume (mL) of a 10g/dL of NAOH needed to prepare 1000 mL of 2g/dL of NAOH.