input with options: Q: Elements below the second period, such as silicon, do not form what as readily as second-period elements, and when they do form, they are weaker than those formed by second-period elements? A:
OPTIONS:
- covalent bonds
- magnetic bonds
- k. bonds
- n bonds
output: n bonds

Q: Q: What is a segment of dna that carries a code for making a specific polypeptide chain called? A:

OPTIONS:
- a protein
- nucleotide
- amino acid
- a gene

A: a gene

input: OPTIONS:
- nicotine
- caffeine
- adrenaline
- testosterone Now, answer this question: Q: What is responsible for the physical changes of puberty? A:
A:
output: testosterone

Q: A long chain of mountains that rises up high above the deep seafloor is called? A:

OPTIONS:
- oceanic alps
- blue ridge mountains
- sea mounds
- mid-ocean ridges

Answer: mid-ocean ridges

Problem: OPTIONS:
- atoms
- rna
- molecules
- genes
Q: Q: The chromosomal theory of inheritance proposed that what reside on chromosomes? A:
Answer: genes

Q: What is an isotope that is radioactive called? A:

OPTIONS:
- isotopes
- matured isotope
- radionuclides
- radioisotopes

Answer:
radioisotopes