A. bind and unwind double helix
The answer is C. Genetic Isolation.
Genetic isolation occurs when there is no genetic exchange between organisms of the population or species. One of the reasons that cause genetic isolation is geographical separation. The reason why some species of koalas are only found in Australia and lemurs in Madagascar is that they cannot mate with other species outside of their geographical boundary.
Answer:
C.organisms had adapted to new environments,givingrise to new species
Explanation:
-On his visit to the Galapagos Islands, Charles Darwin discovered several species of finches that varied from island to island, which helped him to develop his theory of natural selection.
-He noticed that each finch species had a different type of beak, depending on the food available on its island. The finches that ate large nuts had strong beaks for breaking the nuts open.
Metal is only cold because of our bodies temperature, that’s what makes it seem cold when we hold it. But metal is normally warm
