Q: The spectrum is made up of discrete lines representing transitions of the hydrogen electron between specific energy levels within what? A:
OPTIONS:
- a rainbow
- an element
- the molecule
- the atom

Answer: the atom

Question: Q: The epochs of the universe are known back to very shortly after what 'explosive' event? A:
OPTIONS:
- Biggest bang
- Explosive bang
- major bang
- big bang
Answer: big bang

input with options: Q: What are substances that provide hydrogen ions (h+) and lower ph? A:
OPTIONS:
- proteins
- nutrients
- bases
- acids
output: acids

Q: Q: What structure of a cell is enclosed by a membrane and contains most of the cell's dna? A:

OPTIONS:
- vacuole
- ribosome
- epidermis
- nucleus

A: nucleus

input: OPTIONS:
- protons
- particles
- ions
- molecules Now, answer this question: Q: What are groups of atoms that behave as a single unit called? A:
A:
output: molecules

Question: Q: Met, asn, trp, and gln connect together like beads on a necklace and are an example of what type of acids? A:
OPTIONS:
- polymer acids
- organism acids
- peptic acids
- amino acids
Answer:
amino acids