Q: What is formed when amino acids are linked together in a long chain? Choices: - amino acid - hormones - water molecule - protein A:
protein

Q: What element on the periodic table forms the most diverse compounds? Choices: - helium - oxygen - hydrogen - carbon A:
carbon

Q: The planet neptune has strange dark spots that sometimes appear on its surface? what are these spots? Choices: - seas - earthquakes - black holes - storms A:
storms

Q: Reflected in their relatively high level of intelligence and their ability to learn new behaviors, what organs tend to be relatively large in primates? Choices: - lungs - hearts - kidneys - brains A:
brains