*Question*
Q: What are the two types of endoplasmic reticulum? Choices: - thick & smooth - rough & thin - rough & thick - rough & smooth A:
**Answer**
rough & smooth

*Question*
Q: What does the esophagus produce for lubrication? Choices: - synovial fluid - phloem - bile - mucous A:
**Answer**
mucous

*Question*
Q: What are floods a source of on a floodplain? Choices: - salt - acids - minerals - nutrients A:
**Answer**
nutrients

*Question*
Q: Changing electric and mnagnetic fields radiate outward when? Choices: - particles lose their charge - particles multiply - firing particles accelerate - charged particles accelerate A:
**Answer**
charged particles accelerate