Question: Q: What type of molecules are secreted by the cell in local signaling? A:
OPTIONS:
- word molecules
- negaitive molecules
- sleeping molecules
- messenger molecules
Answer: messenger molecules

Question: Q: Not getting enough calcium may cause what health problem? A:
OPTIONS:
- blindness
- arthritis
- diabetes
- osteoporosis
Answer: osteoporosis

Question: Q: Matter is always conserved in what type of reaction? A:
OPTIONS:
- developed reaction
- Quick reaction
- toxic reaction
- chemical reaction
Answer:
chemical reaction