#Question id: 11279
#Unit 10. Ecological Principles
Ecosystem A: Actual link 10, number of species 15
Ecosystem B: Actual link 10, number of species 20
Connectance of ecosystem A and B
#Question id: 11280
#Unit 10. Ecological Principles
Ecosystem services include processes that increase the quality of the abiotic environment. Which of the following processes would fall under this category?
#Question id: 11281
#Unit 10. Ecological Principles
Owls eat rats, mice, shrews, and small birds. Assume that, over a period of time, an owl consumes 5,000 J of animal material. The owl loses 2,300 J in feces and owl pellets and uses 2,500 J for cellular respiration. What is the production efficiency of this owl?
#Question id: 11282
#Unit 10. Ecological Principles
Which of the following ecosystems would likely have the largest net primary productivity per hectare and why?
#Question id: 11283
#Unit 10. Ecological Principles
Herbivore ingests plant material with 1000 k j energy form producer and assimilated only 200 k J energy in their blood stream; additionally herbivore invests 120 k j energy in their maintenance. What is production efficiency of that herbivore?
#Question id: 11284
#Unit 10. Ecological Principles
Which of the following could qualify as a top-down control on a grassland community?