Galaxy is a collection of stars, gas, and dust bound together by gravity. The smallest galaxies may contain only a few hundred thousand stars, while the largest galaxies have thousands of billions of stars.
Answer:
crown, neck.
Explanation:
A tooth has an exposed <em><u>crown</u></em>, a constricted <em><u>neck</u></em>, and one or more roots that anchor it to the jaw.
The average speed is
(95 + 55)/5 = 150/5 = 30 kilometers/hour
<span>a qualitative method used clinically to measure antibiotic resistance and industrially to test the ability of solids and textiles to inhibit microbial growth.</span>