Continuous cell lines can be maintained through an indefinite number of generation :)
I can't see the problem for number 18 write it out and I can help you!
Answer:
In contrast, major disturbances include large-scale wind events (such as tropical cyclones), volcanic eruptions, tsunamis, intense forest fires, epidemics, ocean temperature changes stemming from El Niño events or other climate phenomena, and pollution and land-use conversion caused by humans
Explanation:
