Problem: OPTIONS:
- young sacrum
- lower sacrum
- permanent sacrum
- adult sacrum
Q: Q: Synostoses unite the sacral vertebrae that fuse together to form the what? A:
Answer: adult sacrum

Problem:OPTIONS:
- fraternization
- in vitro fertilization
- pollenation
- polyspermy

Q: What is the term for if multiple sperm fuse with an egg? A:
****
A: polyspermy

Q: What is needed by all known forms of life? A:
OPTIONS:
- nitrogen
- warmth
- air
- water
water

Q: The fast motion of gas particles gives them a relatively large amount of what energy? A:
OPTIONS:
- residual energy
- Potential energy
- Chemical energy
- kinetic energy

Answer: kinetic energy

Question: Q: What do tube worms rely on for food? A:
OPTIONS:
- fatty microorganisms
- lentiviruses microorganisms
- sponges microorganisms
- chemosynthetic microorganisms
Answer: chemosynthetic microorganisms

input: OPTIONS:
- aldehyde
- polymer
- hydrocarbon
- heterocyclic Now, answer this question: Q: What type of compound contains atoms of two or more different elements in its ring structure? A:
A:
output:
heterocyclic