#Question id: 19215
#Unit 12. Applied Biology
#Question id: 20289
#Unit 7. System Physiology – Animal
#Question id: 4655
#Unit 11. Evolution and Behavior
Over evolutionary time, many cave-dwelling organisms have lost their eyes. Tapeworms have lost their digestive systems. Whales have lost their hind limbs. How can natural selection account for these losses?
#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: 18746
#Unit 13. Methods in Biology