A microbial species that grows optimally at a pH of below 5.5 is best called a(n)

This is the number of children born to an average woman in a population during her life?

Round-up is an example of what type of pesticide?

This is an organism that has a broad niche?

Turbidity is 

These are substances that release H+ in water?

This is the symbol that represents population?

This sort of heterotroph feeds on plants and animals?

This sort of organism produce large numbers of offspring, has a small body size, matures early, and has a short life span

The taking of more individuals than reproduction can replace?