Q: What is the name for unsaturated hydrocarbons that contain at least one double bond? Choices: - lipids - acids - enzymes - alkenes A:
alkenes
------
Q: Why is gingko biloba planted in public spaces? Choices: - for xeriscaping - self-pollinating - self-containing - resistant to pollution A:
resistant to pollution
------
Q: Precipitation maps show the amount of what in different areas? Choices: - population - heat - geographical variety - rainfall A:
rainfall
------
Q: What occurs when there are differences in fitness among a population? Choices: - evolution - natural process - natural change - natural selection A:
natural selection
------