Which is the best example of predation?

Hookworms live in the intestines of dogs and feed on their blood.
Barn owls often capture and eat mice that live in fields.
A colony of termites protects the eggs laid by a queen termite.
Two species of shellfish grow in the same shallow ocean wat

Sylvanite is a mineral that contains 28.0% gold by mass. how much sylvanite would you need to dig up to obtain 77.0 g of gold? explain how you got your answer and the steps you took. you

1) this is the structure in the cell nucleus that houses a cell's genetic information

Silver tarnishes as silver metal reacts with hydrogen sulfide, h2s, in the air. in this reaction, dark silver sulfide, au2s, covers the surface of silver. when silver is polished, this coating of silver sulfide can be removed from the surface. this makes the silver shiny again. enter the coefficients that balance the tarnishing reaction equation. (type 1 for no coefficient.)