Analyze Examples of Cooperative Behavior Practice Test

In a meerkat group, one individual climbs onto a rock and scans the area while the others dig for insects. When the sentinel spots a hawk, it gives a loud alarm call and the foragers rush into burrows. The sentinel is more visible while calling. Which option best identifies this behavior and its benefit?

In a cooperative breeding bird species, a breeding pair has chicks in a nest. Two older siblings (from a previous brood) help by bringing food to the chicks and calling loudly when a snake approaches. The helpers spend time feeding chicks instead of foraging for themselves. Which choice best identifies the cooperative behavior and its likely advantage?