Why are nonnative species a threat to biodiversity? a) they often use up resources that other organisms need. b) they are not able to successfully breed in the wild. c) they release pollution into many environments. d) they easily contract and spread diseases to other organisms.

The trp operon in e.coli regulates genes that code for enzymes required for synthesis of the repressible operon. when tryptophan is not available amino acid tryptophan. the trp operon is a in the environment, the trp repressor protein activeinactiveregulated. therefore, rna polymerase can bind to the genes to begin transcription.

There are specialized producers that live in warm water vents deep in the ocean. these producers do not per-form from photosynthesis, but instead perform a similar process with iron and other chemicals. why do you think these producers use this process instead of photosynthesis?

Where can a dna be found in a prokaryotic cell