A, b, and c! i’m sorry if you get this incorrect but i’m sure that it’s right
Darwins <em>theory</em> of <em>evolution</em> explains how modern organisms evolved over long periods of time through descent from common ancestors. <em>Darwin</em> meant that different, yet ecologically similar, animal species inhabited separate, but ecologically similar, habitats around the globe.
This is cyclic change because the population is consistently going up and back down.
Answer: CO alarms have a life expectancy of around seven years. The CO alarm will beep every 30 seconds or display ERR or END. If a CO alarm is at its end-of-life, replacing the battery will not stop the beep. Most detectors will beep 4 or 5 times in a row about every 4 seconds. Do not mistake dangerous levels of poisonous gas for a detector with low battery.
Explanation: (credits to the internet) Hope this helped! :D
