Q: Q: What type of isotopes have short half-lives and are given in very low doses? A:

OPTIONS:
- stable isotopes
- gasses
- radionuclides
- radioisotopes

A: radioisotopes

input: OPTIONS:
- fatty microorganisms
- lentiviruses microorganisms
- sponges microorganisms
- chemosynthetic microorganisms Now, answer this question: Q: What do tube worms rely on for food? A:
A:
output: chemosynthetic microorganisms

Q: Has the average annual temperature on earth been rising or falling for the past 100 years? A:

OPTIONS:
- unchanged
- fluctuating
- falling
- rising

Answer: rising

Problem: OPTIONS:
- waves
- ions
- atoms
- electrons
Q: Q: Each line in a structural formula represents a pair of shared what? A:
Answer: electrons

Problem:OPTIONS:
- fur balls
- accumulated toxins
- calories
- excess body heat

Q: Panting allows dogs to get rid of what? A:
****
A: excess body heat

Problem:OPTIONS:
- trichina
- xerophyte
- spiral
- brachiocephalic

Q: Each vertebral vein also flows into which vein? A:
****
A:
brachiocephalic