*Question*
Q: The release of mature eggs that occurs at the midpoint of each cycle is called? Choices: - fertilization - induction - semination - ovulation A:
**Answer**
ovulation

*Question*
Q: What important and unusual physical property (for birds) do ostriches and penguins share? Choices: - waterproofness - webbed feet - bonelessness - flightlessness A:
**Answer**
flightlessness

*Question*
Q: The type of eruption a volcano has depends on the type of what in its chamber? Choices: - funnel - cavity - core - magma A:
**Answer**
magma

*Question*
Q: What occurs when two wave crests overlap? Choices: - forth interference - constructive overlap - constructive dissonance - constructive interference A:
**Answer**
constructive interference