Q: How many membranes form the mitochondrion structure of a cell? Choices: - one - five - three - two A:
two

Q: Deoxyribonucleic acid (dna) is nucleotide that stores what type of information? Choices: - mononucleus - mutation - variation - genetic A:
genetic

Q: Q: The reaction of calcium oxide with carbon dioxide forms what? Choices: - nitrogen carbonate - carbon monoxide - nitrogen - calcium carbonate A:
A: calcium carbonate

Question: Q: What are the special mating behaviors in birds called? Choices: - display - attraction - presentation - courtship A:
Answer: courtship

*Question*
Q: Where in the atom is a neutron found? Choices: - electron - proton - orbit - the nucleus A:
**Answer**
the nucleus

*Question*
Q: The reaction of which body system causes food allergies? Choices: - cardiac system - lymphatic system - nervous system - immune system A:
**Answer**
immune system