Problem: OPTIONS:
- stimulus
- Response
- Cortex
- true brain
Q: Q: What do jellyfish lack in their nervous system? A:
Answer: true brain

Problem:OPTIONS:
- deformation
- decomposition
- dissolution
- dissociation

Q: What do you call the separation of ions that occurs when a solid ionic compound dissolves? A:
****
A: dissociation

Q: What is the ideal mechanical advantage in the single fixed pulley? A:
OPTIONS:
- zero
- 2
- 4
- 1
1

Q: What is the goal of science? A:
OPTIONS:
- improve knowledge
- improve life expectancy
- gain scholarships
- increase knowledge

Answer: increase knowledge

Question: Q: Thousands of receptor cells that detect the sex attractant equip each filament of what structure? A:
OPTIONS:
- optic nerve
- flagella
- molecule
- antenna
Answer: antenna

input: OPTIONS:
- producer species
- original species
- colonization species
- pioneer species Now, answer this question: Q: The first few species to colonize a disturbed area are called what? A:
A:
output:
pioneer species