*Question*
Q: Ions that contain fewer electrons than protons have a net positive charge and are called what? Choices: - oxides - particles - anions - cations A:
**Answer**
cations

*Question*
Q: What genetic unit is formed when the dna double helix wraps around proteins and tightly coils a number of times? Choices: - atom - gene - neutron - chromosome A:
**Answer**
chromosome

*Question*
Q: What is defined as the velocity of the object at a given moment? Choices: - specific gravity - relativistic velocity - inertia - instantaneous velocity A:
**Answer**
instantaneous velocity

*Question*
Q: What celestial bodies are classified by color and temperature, ranging from blue to red and hottest to coolest? Choices: - astroids - planets - galaxies - stars A:
**Answer**
stars