Selective pressures created by environmental factors can lead to success of individuals in a population

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

What enzyme is most important for dna replication and why?

To determine if a particular plant is homozygous or heterozygous, you would have to test cross with a