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.

both male and female gametes are produced by meiosis of the germ cells. therefore, both male and female gametes are haploid. one male and one female gamete unite during the fertilization to form the diploid zygote. in seed bearing plants, pollen grain is the male gametophyte, which produces sperm cells.

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