Question

what do r - selected species rely on for their survival? huge numbers of offspring very slow reproduction parental care of offspring a very long life span

Explanation:

r-selected species are characterized by high reproductive rates. They produce a large number of offspring. This strategy compensates for high mortality rates as not all offspring will survive. Slow reproduction (like in K - selected species), parental care (more common in some K - selected species), and long lifespan (also a trait of some K - selected species) are not typical of r - selected species.

Answer:

huge numbers of offspring