1why do people add bacteria to some foods, but kill bacteria in other foods?   a.  not all people like the flavor of bacteria.  b.  all bacteria are safe, but they make food taste bad.  c.  bacteria always make people sick.  d.  different bacteria may be or harmful.

Which organism is the producer in this food web? 7th grade question. a) arthropods b) birds c) fungi d) plants

Sampling lake water for microscopic organisms is not as easy as it sounds when you want to both count and identify species. in a given water sample, your bacteria of choice can be rare or difficult to culture, particularly given the mixture of bacteria in a biofilm. which of the following culture media would be best for growing fecal coliforms when they are relatively less abundant than other bacteria in the lake? anaerobic culture medium enrichment culture medium complex culture medium basic culture medium

Which chemical bond most likely stores the most energy? o a. double carbon-carbon bond o b. single carbon-carbon bond o c. hydrogen-oxygen bond o d. sodium-chlorine bond