Answer:
I think It's D
Explanation:
If it's not D then it's B
Answer:
The four parts of a control system include the controller, amplifier, actuator, and lastly, feedback.
<span>The movement of alleles from one population to another is called gene flow. Other alleles will likely increase in frequency and become fixed. These changes in allele frequencies that are due to chance are called genetic drift. Genetic drift causes a loss of genetic diversity in a population.</span>