*Question*
Q: Featuring a stalk-like filament that ends in an anther, what is the male reproductive organ in a flower? Choices: - angiosperms - cones - petals - stamen A:
**Answer**
stamen

*Question*
Q: What period starts after the baby is born, and the placenta is expelled from the body? Choices: - fetal - postfetal - traumatic - postpartum A:
**Answer**
postpartum

*Question*
Q: The electrochemical potential across a membrane determines the tendency of an ion to do what? Choices: - attach to the membrane - move away from the membrane - destroy the membrane - cross the membrane A:
**Answer**
cross the membrane

*Question*
Q: What form when a single atom gains or loses electrons? Choices: - fusional ions - vacuoles ions - carbon atoms - monatomic ions A:
**Answer**
monatomic ions