Q: Microevolution occurs in a population when what frequencies change over time? A:

OPTIONS:
- eukaryote
- molecule
- antenna
- allele

Answer: allele

Q: What is the term for dry climate regions at higher altitudes that have short grasses and low bushes? A:

OPTIONS:
- deserts
- fringes
- prairie
- steppes

Answer: steppes

Q: What do prevailing winds influence? A:

OPTIONS:
- weather
- temperature
- barometric pressure
- climate

Answer: climate

Q: What keeps various species from mating and reproducing outside their own species? A:

OPTIONS:
- digestive system incompatibility
- brain organ incompatibility
- cancer organ incompatibility
- reproductive organ incompatibility

Answer:
reproductive organ incompatibility