Q: What do atoms form by sharing valence electrons? Choices: - phenotype bonds - neutron bonds - ionic bonds - covalent bonds A:
covalent bonds

Q: What two types of atoms bond to form sulfate minerals? Choices: - oxygen and carbon - oxygen and calcium - carbon and sulfur - oxygen and sulfur A:
oxygen and sulfur

Q: Q: What kind of reproduction requires the fusion of male and female gametes? Choices: - autonomous reproduction - asexual reproduction - subject reproduction - sexual reproduction A:
A: sexual reproduction

Question: Q: What are all living things made of? Choices: - water - proteins - muscles - cells A:
Answer: cells

*Question*
Q: Mirrors and lenses are used in optical instruments to reflect and refract what? Choices: - gravity - mass - electricity - light A:
**Answer**
light

*Question*
Q: What would you need to see most cells? Choices: - ultraviolet - infrared - mirror - microscope A:
**Answer**
microscope