Problem:OPTIONS:
- water filtration
- water dilution
- water cleaning
- water treatment

Q: What is a series of processes that remove unwanted substances from water called? A:
****
A: water treatment

Q: Exchange occurs directly with the external environment in what type of organisms? A:
OPTIONS:
- hematopoietic organisms
- cell clusters
- multicellular organisms
- unicellular organisms
unicellular organisms

Q: Matching donor and recipient blood types is important because different blood types have different types of what? A:
OPTIONS:
- antigens
- charges
- coagulants
- antibodies

Answer: antibodies

Question: Q: A group of genetically identical individuals is called what? A:
OPTIONS:
- brother
- replicant
- a man
- a clone
Answer: a clone

input with options: Q: What is the study of ecosystems? A:
OPTIONS:
- physics
- botany
- geology
- ecology
output: ecology

Problem: OPTIONS:
- volume fluctuates
- volume decreases
- volume is unchanged
- volume increases
Q: Q: What happens to volume as the temperature increases? A:
Answer:
volume increases