#Question id: 11319
#Unit 10. Ecological Principles
Which of the following plant defensive compounds is found at high levels in oak leaves?
#Question id: 11320
#Unit 10. Ecological Principles
What are secondary compounds of plants?
#Question id: 11321
#Unit 10. Ecological Principles
What is a constitutive plant defense?
#Question id: 11322
#Unit 10. Ecological Principles
Which color of light predominates with increasing depth in aquatic ecosystems?
#Question id: 11323
#Unit 10. Ecological Principles
Upwelling zones of high biological productivity are found along the western coasts of the major continents. What causes this upwelling?
#Question id: 11324
#Unit 10. Ecological Principles
Many temperate lakes develop pronounced thermal stratification during the summer months. In which zone of such lakes does temperature change most rapidly with depth?