Q: Q: What type of protein speeds up chemical reactions in cells? A:

OPTIONS:
- hemoglobin
- lipids
- collagen
- enzyme

A: enzyme

input: OPTIONS:
- a linear polymer
- a branched polymer
- an addition monolayer
- an addition polymer Now, answer this question: Q: What is a polymer formed by chain addition reactions between monomers that contain a double bond called? A:
A:
output: an addition polymer

Q: When what common element forms single bonds with other atoms, the shape is tetrahedral, and when its atoms form a double bond, the shape is planar? A:

OPTIONS:
- oxygen
- hydrogen
- silicon
- carbon

Answer: carbon

Problem: OPTIONS:
- atoms
- phases
- organisms
- elements
Q: Q: Conductivity, oxidation state and physical appearance are properties that help determine whether what are metals? A:
Answer: elements

Problem:OPTIONS:
- ecological
- physical
- chemical
- biological

Q: Molds, pollen, and pet dander are examples of air pollution with what type of source? A:
****
A: biological

Problem:OPTIONS:
- primary succession
- typical succession
- cause succession
- secondary succession

Q: A wildfire clears a forest of vegetation and animal life, returning their nutrients to the ground leaving a foundation for rapid recolonization. what is this a classic example of? A:
****
A:
secondary succession