Problem: OPTIONS:
- prokaryotes
- monomers
- microorganisms
- eukaryotes
Q: Q: Single-celled eukaryotes that share some traits with animals are also called? A:
Answer: eukaryotes

Problem:OPTIONS:
- autonomic system
- endocrine system
- peripheral nervous system
- centralized nervous system

Q: Echinoderms lack what type of system that in humans consists of the brain and spinal cord? A:
****
A: centralized nervous system

Q: What organs absorb water and nutrients from the soil? A:
OPTIONS:
- flowers
- buds
- leaves
- roots
roots

Q: What is the term for a substance that increases the rate of a chemical reaction but is not changed or used up in the reaction? A:
OPTIONS:
- a mechanism
- an acid
- a contribute
- a catalyst

Answer: a catalyst

Question: Q: Insects have a highly specialized type of respiratory system called what? A:
OPTIONS:
- nasal system
- gland system
- grunion system
- tracheal system
Answer: tracheal system

input: OPTIONS:
- lightning
- atmosphere
- wind
- precipitation Now, answer this question: Q: What is the term for water that falls from clouds? A:
A:
output:
precipitation