Q: The production of multiple copies of a single gene is called? Choices: - cell cloning - gene variation - gene change - gene cloning A:
gene cloning

Q: What is the smallest independently functioning unit of a living organism? Choices: - proteins - molecule - atom - cell A:
cell

Q: Respiration rate correlates with what? Choices: - size - heat - pressure - energy use A:
energy use

Q: Neutron stars are the corpses of left over what? Choices: - planet explosions - gravitational explosions - stellar explosions - supernova explosions A:
supernova explosions