Fill in the blank and highlight the correct answers in the statement below: The main molecule that makes up our cell membranes is . Its head is (hydrophilic/hydrophobic) and its tail is (hydrophilic/hydrophobic)

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

This is one form of rna that transports a specific amino acid to a ribosome during protein synthesis.

The energy required to vaporize a certain amount of a substance is greater than the amount of energy necessary to raise the temperature of the same amout of that substance by 1 degreee celcius