Examlex
A group of galaxies with a diameter of 2 Mpc has 40 galaxies with typical velocities of 200 km/s.If the group is just a chance coincidence,how long will it last?
Visual Receptors
Cells in the eye, specifically rods and cones, that respond to light and enable vision.
Sclera
The white outer layer of the eyeball that, along with other structures, protects the eye and helps maintain its shape.
Cornea
The transparent front part of the eye that covers the iris, pupil, and anterior chamber, contributing to the eye's focusing power.
Pupil
The pupil is the black circular opening in the center of the iris of the eye, which regulates the amount of light that enters the eye.
Q2: A massive star collapses and its core
Q2: Over the course of their hydrogen-fusing lives,stars:<br>A)
Q9: Collisions are important in forming:<br>A) elliptical galaxies.<br>B)
Q27: The Magellanic Stream is evidence of:<br>A) a
Q38: Astronomers discover a galaxy 1.4 Gpc from
Q42: Mike works as a corporate trainer, teaching
Q55: According to recent models,supernova explosions are driven
Q60: The principle tool that most managers now
Q68: A differentiator should not be concerned about
Q70: The Hubble Deep Field was important for