1990. Do not let the partial collapse during 1980s confuse you.
Leaves are green because of the presence of chlorophyll. The chlorophyll helps the plant in absorbing the lights lights having red and blue wavelengths. It actually reflects the lights with green wavelength. The chlorophyll helps the plants in making food. I hope that this is the answer that has come to your help.
Answer:
The correct answer is "the S layer may play a role in protecting cells from viruses and predatory bacteria found in nature but not in laboratory cultures".
Explanation:
The S-layer (surface layer) is a part of the cell's envelope comprised of of identical proteins or glycoproteins that could be found in archaes and some bacterias in nature. The function of the S-layer is unknown, however the fact that is only seen in nature suggest that it may play a role in protecting cells from viruses and predatory bacteria found in nature but not in laboratory cultures. It is likely that archaes and bacteria synthesize the S-layer when they recognize viruses and predatory bacteria in nature, the S-layer is not synthesized in laboratory cultures because these pathogens are not present.
Look it up online, look up a copy of the Articles of confederation and fill it in! Best I can do for you my friend
They help convert nitrogen to nitrate which is usable by living beings. (Living beings can't use regular nitrogen)
