The attraction that holds two covalently bonded atoms together is called covalent bond
Isolation can be due to behavioral, geographical, or temporal barriers. <span>Speciation can take place in two general ways. A single species may change over time into a new form that is different enough to be considered a new species. This process is known as anagenesis. More commonly, a species may become split into two groups that no longer share the same gene pool. This process is known as cladogenesis. There are several ways in which anagenesis and cladogenesis may take place. In all cases, reproductive isolation occurs. Hope this helps! </span>
Answer:
59 is false and 60 and true
Explanation: I think it is right sorry if it is wrong. I hope this helps
It would be generation 5 in which there will be almost 100% non-singing females if there are no changes in the birds’ environment and interactions