Please do 3 and 4! Please help asap! Please help!

Select the true statements about eubacteria. most live as decomposers and heterotrophs. most only thrive in a narrow range of environments. certain eubacteria are responsible for food poisoning. eubacteria thrive in extreme environments.

In general, characteristics that an organism survive and reproduce become more common over time. what mechanism of evolution causes this?

What are the three types of counseling established by marine corps policy?