Which is the best example of parasitism? a pearlfish hides within a sea cucumber, and the sea cucumber is not affected. a sparrow catches and eats a painted lady butterfly. a tapeworm lives inside the intestines of a pig, robbing the pig of nutrients it needs. an ant eats nectar produced by a flower, and the flower is not harmed.

A tapeworm lives inside the intestines of a pig, robbing the pig of nutrients it needs.

Explanation:

Parasitism is the association between two organisms wherein parasite lives in or on the surface of the body of the host organism and derives nutrition from it. Here, the parasite is benefited while the host organism is harmed.

A tapeworm is endo-parasite of pig and lives in its intestine. The worm feeds on the digested food present in the intestine of pig and thereby reduces the nutrients supply for the pig. Since the worm is benefited while the pig is harmed, it is an example of parasitism.

the two answers are a, the population of birds with large beaks will increase on the island, and c, the trait for large beaks will be passed on to future generations through natural selection. the reason for that is because if the birds that have beaks developed for eating small seeds lose all of their food, they will go hungry and eventually starve because they physically cannot eat the large seeds, therefore making the population of large beaked birds higher. also, if the trait of large beaks are dominant on the island over small beaks, then over time the large beaked birds will reproduce more and more, while the smaller beaked birds will reproduce less and less because they can't survive with the food provided. that leads to the trait of small beaks disappearing and the trait of large beaks taking over the island.