Which is the best example of parasitism?

a. a pearlfish hides within a sea cucumber, and the sea cucumber is not affected.

b. a sparrow catches and eats a painted lady butterfly.

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

d. an ant eat nectar produced by a flower, and the flower is not harmed.

Check all that apply diatoms are marine algae that have a shell made of silica, what are some of the uses of the silica shell after the diatoms die? 1.the shells make up the diatomaceous earth used in filters 2.it can be used as an ingredient in abrasives 3.they are used in food products 4.the shells can be used in some insulating materials

Question#29: why does the tropical ocean have a greater temperature range than the temperate ocean?

In general, characteristics that an organism survive and reproduce become more common over time. what mechanism of evolution causes this?