About where is our solar system located within the Milky Way Galaxy?
A) at the center of the galaxy
B) about 10 percent of the way from the center of the galaxy to the outskirts of the galactic disk
C) about half way from the center of the galaxy to the outskirts of the galactic disk
D) near the far outskirts of the galactic disk
E) in the halo of the galaxy above the galactic disk
Question 2
What was the primary role of dust in the formation of the solar system?
A) Dust formed the rings around Uranus, Neptune, and Jupiter.
B) Dust veiled the process by which our solar system formed.
C) Dust acted as condensation nuclei; platforms to which other particles could attach and form larger particles of matter.
D) The Sun formed from a vast spinning cloud consisting only of dust.
E) Dust provided the radioactive elements that initially heated the Sun.
Acetylcholine receptors and the autonomic nervous system
The Endomembrane System 1
Schematic of the Earth–Moon system (without a consistent scale)
The respiratory system
Female Reproductive System
Major muscles of the human musculoskeletal system