What is the basic criteria for the formation of a hydrogen bond? 1. sharing of electrons 2. polarity 3. loss of electrons 4. gain of electrons !

Which of the following statements most accurately describes convergent evolution? the process in which two similar species evolve separately from each other and share similar characteristics the process in which a single species evolves into two or more new species the process in which two entirely different species evolve in response to each other the process in which two different species evolve separately from each other but still share similar characteristics

Regarding most of the narrator’s story, which word best describes the tone?

How does the nervous system affect the excretory system?