What is the function of this cell organelle

Iwill give brainiest to first person who gets it ! what are 3 basic types of interactions we see in an ecosystem?

Monitor and apply fix up strategies

The frequency of alleles in a population that is in hardy weinberg equilibrium? a . changes in each successive generation b. is less important than the frequency genotypes c. shows evidence of the process of natural selection d. remains the same over several generations