2) An enzyme in saliva called amylase will work on starch but not on proteins. This action shows that amylase
(A) contains starch
(B) is chemically specific
(C) is not reusable
(D) lacks proteins

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

The reactions that occur in the ribosome, where amino acids are combined to form proteins are anabolic or catabolic?

What best explains the inability for life to exist in earth early atmosphere