#Question id: 33507
#Unit 2. Cellular Organization
#Question id: 3455
#Unit 11. Evolution and Behavior
A duck egg is removed from its mother’s nest and incubated by a barnyard hen. The duckling hatches out in the presence of the barnyard hen and stays in her nest. After a couple of days, the duckling is presented with a choice between its biological mother and the hen that incubated it. The duckling approaches and follows the hen. This set of observations demonstrates the phenomenon of
#Question id: 12754
#Unit 13. Methods in Biology
#Question id: 9255
#Unit 9. Diversity of Life Forms
Studying species transplants is a way that ecologists ________.
#Question id: 10863
#Unit 10. Ecological Principles
According to the ____________ principle, two species with identical requirements for existence cannot coexist indefinitely