input: OPTIONS:
- posterior axis
- cylindrical - ventral axis
- proximal axis
- dorsal-ventral axis Now, answer this question: Q: What is established by the ph differences between the two sides of the blastoderm cells? A:
A:
output: dorsal-ventral axis

Q: What is the time since the beginning of the ice ages? A:

OPTIONS:
- Paleolithic era
- Mesozoic epocH
- Jurassic period
- quaternary period

Answer: quaternary period

Problem: OPTIONS:
- attractive
- expressive
- polar
- repulsive
Q: Q: When both objects have a positive charge what will the force be between them? A:
Answer: repulsive

Problem:OPTIONS:
- sublet
- top
- core
- domain

Q: What is the largest taxonomic rank? A:
****
A: domain

Q: The conservation of momentum principle can be applied to systems as different as a comet striking earth and a gas containing huge numbers of atoms and these? A:
OPTIONS:
- particles
- ions
- protons
- molecules
molecules

Q: What basic structures take in nutrients from the soil and help the plant survive? A:
OPTIONS:
- tissues
- stems
- leaves
- roots

Answer:
roots