*Question*
Q: Transverse divisions are associated with leaf elongation, and longitudinal divisions are associated with what? Choices: - leaf shedding - leaf multiplying - leaf coloring - leaf broadening A:
**Answer**
leaf broadening

*Question*
Q: Because these components of the endocrine system are transported via blood, they get diluted and are present in low concentrations when they act on their target cells. Choices: - enzymes - antibodies - minerals - hormones A:
**Answer**
hormones

*Question*
Q: The first living cells may have evolved around how long ago? Choices: - 900,000 years - 6 billion years - 2.2 billion years - 4 billion years A:
**Answer**
4 billion years

*Question*
Q: What is the force that causes centripetal acceleration? Choices: - pressure - gravity - Tension Force - centripetal force A:
**Answer**
centripetal force