Q: Q: What distinctive dna shape forms when the two nucleotide chains wrap around the same axis? A:

OPTIONS:
- single spiral
- chain helix
- double spiral
- double helix

A: double helix

input: OPTIONS:
- chromosomes
- molecules
- droplets
- platelets Now, answer this question: Q: Thrombocytes are more commonly known by what name? A:
A:
output: platelets

Q: Diffusion can occur across a semipermeable membrane, such as the cell membrane, as long as a what exists? A:

OPTIONS:
- polarity
- parity
- differential
- concentration gradient

Answer: concentration gradient

Problem: OPTIONS:
- tidal waves
- seismic thrusts
- velocity waves
- surface waves
Q: Q: What are the rolling motions during an earthquake called? A:
Answer: surface waves

Problem:OPTIONS:
- material on Earth
- synthetic magnet
- healing magnet
- natural permanent magnet

Q: Also called lodestone, the mineral magnetite is the most powerful what? A:
****
A: natural permanent magnet

Problem:OPTIONS:
- circulatory system
- pulmonary system
- digestion system
- immune system

Q: An antigen is a macromolecule that reacts with components of what? A:
****
A:
immune system