" You Should go home, lay in bed, and try to block everything out while trying to sleep"
It means they constantly interact with each other and with their environment and are dependent upon each other for survival.
Hope this helps you out :)
The reasons why 241am smoke detectors are perfectly safe is because;
(i) The amount of americium is very little.
(ii) The aluminium core is where the detector is hosted.
(iii) The detector has a plastic cover.
(iv) Radiation is limited in penetrating power.
(v) There is a low number which is leaving the case.
(iv) ions get trapped by electrodes.
A absorbing nutrients from the soil
It's called merging cells. I don't understand why this is in Biology but whatever.
