Answer:
D.
They break down dead organisms.
Explanation:
abiotic factors.
An abiotic factor is a non-living part of an ecosystem that shapes its environment.
Answer:
results will be more accurate if there is a larger sample size.
No matter what research is, the larger sample size is, the more accurately will be the results and vice versa. The larger samples increase a chance of significance because they reflect the population mean more reliably.
With small sample, the chance for false conclusions is higher.
Explanation: