Meerkats divide up the roles in their population; some serve as lookouts for predators while others forage for food. This is an example of

altruistic behavior

Explanation:

When a predator is spotted, they give a warning bark and other members of the gang will run and hide in one of many bolt holes that have spread across their territory.

ysosomes are membrane-bound vesicles that contain digestive enzymes, such as glycosidases, proteases and sulfatases. lysosomal enzymes are synthesized in the endoplasmic reticulum (er), are transported to the golgi apparatus, and are tagged for lysosomes by the addition of mannose-6-phosphate label.

explanation:

b. the carbon cycle ensures living things have a source of hydrogen