How can both asexual reproduction and sexual reproduction allow for the survival of a species?

Some organisms can use both types of reproduction. For example, when conditions are favorable, many plants and fungi will reproduce asexually. Doing so lets them spread quickly and take over an area. When the environment changes these organisms will switch to sexual reproduction. this strategy increase the chance that the species will survive.

i'd say that the moon rock is about 2.2 billion years old.

the answer is d. chordata