CH 6 CFA - Biomes

Natural selection results in the survival and reproduction of organisms best suited to their current ___

How do ecologists classify ecosystems into broad categories?

• By analyzing their similarities

• By measuring their size

• By counting the number of species

• By studying their individual components

What largely determines which biome covers any particular portion of the planet?

• Geography

• Climate

• Human population

• Time of day

What factor varies in different biomes?

• Net primary production

• Temperature

• Precipitation

• Biodiversity

Ecosystems vary in their net primary productivity, which is the rate at which primary producers convert energy to ___

What are biomes characterized by?

• Climates and typical plant and animal life

• Geographical features and human population

• Economic activities and political systems

• Historical events and cultural traditions

Each biome tends to have a suite of characteristic organisms adapted to its particular set of ___

What are some strategies that animals in savannas use to cope with scarce water?

• Hunting for prey

• Building nests

• Migrating in search of water

• Hibernating during dry seasons

What are some adaptations of plants in savannas to cope with frequent dry periods?

• Thick stems

• Shallow roots

• Waxy coatings

• Large leaves

In which type of regions are savannas found?

• Temperate regions

• Tropical regions

• Polar regions

• Desert regions