Q: Most flowers carry both stamens and carpels; however, a few species are capable of what and are nicknamed "perfect" flowers? A:

OPTIONS:
- sexual reproduction
- germination
- cloning
- self-pollination

Answer: self-pollination

Problem: OPTIONS:
- continuation
- contention
- concentration
- competition
Q: Q: Overproduction of offspring, combined with limited resources, results in what? A:
Answer: competition

Problem:OPTIONS:
- carbon
- helium
- acid
- water

Q: In the presence of oxygen, hydrogen can interact to make what? A:
****
A: water

Q: Protein digestion begins in the stomach as pepsinogen in gastric juice is converted to pepsin, the enzyme that hydrolyzes this? A:
OPTIONS:
- disulfide bridges
- hydrogen bonds
- ionic bonds
- peptide bonds
peptide bonds

Q: Water and many metals are materials that have low resistance to electric currents and are therefore known as what? A:
OPTIONS:
- radioactive
- good insulators
- electromagnets
- electric conductors

Answer: electric conductors

input with options: Q: Exposure to what is the most common cause of hearing loss? A:
OPTIONS:
- Guitar
- angry sounds
- outside sounds
- loud sounds
output:
loud sounds