Question

write an answer for the following question in the space provided.

1. ally sees a photograph of a macaroni penguin that lives in south georgia, a sub-antarctic island. she reads more about these penguins and learns that they mate for life. she knows that not all animals mate for life and that there are various combinations of mating systems. describe two of the mating systems, and explain why different systems exist.

Explanation:

• Monogamy: One - male - one - female mating. It can ensure better parental care as both parents can be involved in raising offspring. For example, in some bird species like macaroni penguins (as in the problem), both parents take turns incubating eggs and feeding chicks. This increases the survival rate of offspring.
• Polygyny: One - male - multiple - females. Males can pass on their genes more widely. In species where males can provide protection (e.g., some deer species), a dominant male can have a harem of females. The female benefits from the male's protection, and the male gets to spread his genes. Different systems exist because they are adaptations to different ecological and social environments. For example, in environments where resources are scarce and offspring need a lot of care (like in cold, harsh Antarctic - like regions for macaroni penguins), monogamy may be favored. In environments where protection from predators is a major concern and males can offer that (like in some savanna - dwelling mammals), polygyny may be more beneficial.

Answer:

Two mating systems are monogamy (one - male - one - female) and polygyny (one - male - multiple - females). Different systems exist as adaptations to ecological (e.g., resource availability) and social (e.g., need for protection) environments to maximize offspring survival and gene - spreading.