PLEASE HELP How is an object's acceleration affected by its mass and the forces acting on it?

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

Connection compare and contrast genetic engineering to the process of natural selection. select all statements that are true.

Why has two different alleles for the same trait?