Question

3.14 how are biomes classified? 3.15 what characteristics would you expect desert plants to have? what characteristics would you expect desert animals to have? 3.16 some aquatic biomes are divided into zones. what factors do scientist use to make these divisions? 3.17 what are the main marine biomes? what are the main freshwater biomes? 3.18 what are three types of community interactions?

Explanation:

3.14: Biomes are classified based on climate (temperature and precipitation) and dominant plant life.
3.15: Desert plants often have adaptations like succulence, small leaves to reduce water - loss, and deep roots. Desert animals may have adaptations such as nocturnality to avoid heat, efficient water - conservation mechanisms.
3.16: Aquatic biomes are divided into zones based on factors like light availability (photic vs. aphotic zones), temperature, depth, and salinity.
3.17: Main marine biomes include coral reefs, open ocean, and estuaries. Main freshwater biomes are lakes, rivers, and wetlands.
3.18: Three types of community interactions are competition (organisms compete for resources), predation (one organism eats another), and symbiosis (mutualism, commensalism, and parasitism).

Answer:

3.14: Based on climate and dominant plant life.
3.15: Desert plants: Succulence, small leaves, deep roots. Desert animals: Nocturnality, water - conservation mechanisms.
3.16: Light availability, temperature, depth, salinity.
3.17: Marine biomes: Coral reefs, open ocean, estuaries. Freshwater biomes: Lakes, rivers, wetlands.
3.18: Competition, predation, symbiosis.