#Question id: 11281
#XL - R Botany
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
#XL - R Botany
Which of the following ecosystems would likely have the largest net primary productivity per hectare and why?
#Question id: 11283
#XL - R Botany
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
#XL - R Botany
Which of the following could qualify as a top-down control on a grassland community?
#Question id: 11285
#XL - R Botany
Terrestrial herbivores are animals that eat only plants and their digestive systems contain microbes that aid in the digestion of cellulose, Carnivores eat primarily animal flesh or fluids. Which of the following is correct is correct statement?
#Question id: 11286
#XL - R Botany
Consumption, assimilation, and production efficiencies are measures of ecological efficiency. Following some statements are correct?
(A) Consumption efficiencies for carnivores are typically higher than those of herbivores
(B) Assimilation efficiencies of herbivore are often less than consumption efficiencies
(C) Vertebrates tend to have lower production efficiencies than invertebrates