In 2001, endospores of bacillus anthracis, the causative agent of anthrax, were sent to government officials and news agencies via the mail. in response, the us postal service began to irradiate mail with uv light. was this an effective strategy? why or why not?

How are organisms in the domain eukarya different from those in the domain archaea? o a. eukaryotes have a cell wall. o b. eukaryotes have mitochondria. o c. eukaryotes have more than one cell. o d. eukaryotes have dna. submit

This aquarium exhibits biotic and abiotic factors in an aquatic environment. one of the abiotic factors is

Animal bodies (and even plant bodies for that matter) are complex enough that life couldn't exist without enzymes. enzymes are usually large, complex biological catalysts that are expensive to make. enzymes speed up the rate of chemical reactions without being used up during the reaction (they can be reused many times). they are highly specific in the reactions they regulate. knowing what enzymes are and how they function, why does this explain why complex life forms could not exist if there were no enzymes.