Lucky has learned a trick that not every dog is able to do. In other ways, Lucky is like all other dogs.

Identify some of Lucky's adaptations, as well as some variations among the population of dogs.

According to theories of how life began, how did early organic molecules begin to separate from the outside world? a: specialized enzymes were required b: chains of amino acids created a barrier c: formation of microspheres or vesicles d: rna catalyzed the formation of membranes