#Question id: 11299
#Unit 10. Ecological Principles
Carbon is initially incorporated into the food chain by _____________
#Question id: 11300
#Unit 10. Ecological Principles
What type of organisms convert nitrates and nitrites into nitrogen gas?
#Question id: 11301
#Unit 10. Ecological Principles
How is phosphorus returned to the soil from organic phosphorus?
#Question id: 11314
#Unit 10. Ecological Principles
What type of organism produces acids that degrade rocks and minerals?
#Question id: 11315
#Unit 10. Ecological Principles
Carnivores that eat herbivores in a food chain are the _________________.
#Question id: 11316
#Unit 10. Ecological Principles
Primary production generally determines the sizes of higher trophic levels. This observation provides support for __________ control of community structure.