input: OPTIONS:
- 12 pairs
- 31 pairs
- 19 pairs
- 23 pairs Now, answer this question: Q: How many pairs of chromosomes do human have ? A:
A:
output: 23 pairs

Q: Hemoglobin, with four polypeptide chains or subunits, is the most frequently cited example of a protein having what kind of structure? A:

OPTIONS:
- binary
- unary
- ternary
- quaternary

Answer: quaternary

Problem: OPTIONS:
- customers
- isolators
- producers
- consumers
Q: Q: Living things that feed on others are generally known as what? A:
Answer: consumers

Problem:OPTIONS:
- four
- six
- ten
- two

Q: How many hydrogen atoms does a nitrogen atom of a primary amine have? A:
****
A: two

Q: What law states that energy cannot be created or destroyed? A:
OPTIONS:
- deposit of energy
- conservation of force
- difference of energy
- conservation of energy
conservation of energy

Q: What organ do mammals have that is exceptionally large for their body size? A:
OPTIONS:
- lungs
- heart
- liver
- brain

Answer:
brain