Question 10 of 10 Select the star life cycle that is accurate. A. Nebula, white dwarf, star of one stellar mass, red giant, planetary nebula B. Nebula, star of one stellar mass, supernova, black hole thing C. Star of three stellar masses, white dwarf, nebula, black hole D. Nebula, star of seven stellar masses, red supergiant, supernova, black hole SUBMIT

Plz will mark! the diagram shows the positions of the sun, moon and earth during spring tides, when the high tides are at their highest and low tides at their lowest. what is it about these positions that causes these high and low tides?

Which of the following best describes the purpose of the parathyroid hormone? a. it decreases the blood calcium level and decreases blood phosphorus level. b. it decreases the blood calcium level and increases the blood phosphorus level. c. it increases the blood calcium level and increases blood phosphorus level. d. it increases the blood calcium level and decreases blood phosphorus level.

24. how are vaccines used to keep people healthy?