What are the two major ways in which extrasolar planets have been discovered?
A) direct imaging with large telescopes
B) measuring changes in the star's brightness when a planet transits
C) measuring the motion of the star due to the planets' gravitational tugs
D) A and B
E) A and C
F) B and C
Question 2
What will happen in the Sun immediately after it has exhausted its supply of hydrogen in its core?
A) The core will collapse and a supernova will result.
B) The Sun will turn into a white dwarf and cool off forever.
C) The helium core will shrink, heat, and start fusing helium to carbon.
D) The helium core will shrink and heat; a shell of hydrogen will start fusing.
Teres major
Differentiation of Major Headache Types
Major Adverse Effects of TCAs
Vitamin K plays a major role in blood coagulation, or clotting
Major Structures of the Ear
Maternal age is the major risk factor for autosomal trisomies of all types. By age 42, about one in