Question

what happens to the offspring of most r - selected species in terms of offspring survival?
the majority dont even survive to adulthood.
they all have a very low reproductive rate.
they have few offspring with great parents.
most of the few offspring reach adulthood.

Explanation:

r - selected species are characterized by high reproductive rates (many offspring). However, due to limited parental care and often harsh environmental conditions, the majority of their offspring do not survive to adulthood. For example, many insects (r - selected) lay thousands of eggs, but only a small fraction make it to the adult stage. The option "They all have a very low reproductive rate" is incorrect as r - selected species have high reproductive rates. The option "They have few offspring with great parents" is wrong because r - selected species have many offspring and little parental care. The option "Most of the few offspring reach adulthood" is incorrect as r - selected species have many offspring (not few) and low survival.

Answer:

The majority don't even survive to adulthood.