Hands to food:Usually germs are transmitted from unclean hands to food by an infected food preparer who didn't wash his or her hands after using the toilet. The germs are then passed to those who eat the food. This is easily prevented by always washing your hands after using the toilet and before preparing food items
geological isolation, if the birds that develop mutations do not have any competition they can survive.
Answer:Functions of Coral Reefs: Coral reefs are important for many different reasons aside from supposedly containing the most diverse ecosystems on the planet. They: protect coastlines from the damaging effects of wave action and tropical storms. provide habitats and shelter for many marine organisms.
Widened margins does not occur at the continental margin
Answer:
The answer is D.
Explanation:
Reproductive isolation is where a species can't breed with any other species except its own.