Question

polar bears typically give birth to between one and three cubs once every two or three years. what is true of this species? the species is r - selected. the species has type 2 survivorship. the young have a high probability of survival. polar bears do not take care of their offspring.

Explanation:

• r - selected species: These are species that produce a large number of offspring with little parental care. Polar bears have few cubs (1 - 3) and give birth infrequently (once every 2 - 3 years), so they are not r - selected.
• Type 2 survivorship: Type 2 survivorship has a constant mortality rate throughout life. Polar bears have a relatively low mortality rate for young (due to parental care), so this is not correct.
• High probability of survival for young: Polar bears are K - selected (produce few offspring with high parental investment). Parental care (such as nursing, protecting) increases the survival probability of their cubs.
• Polar bears do not take care of their offspring: This is false. Polar bear mothers nurse their cubs, protect them from predators, and teach them survival skills.

Answer:

The young have a high probability of survival.