In 2001, bacillus anthracis endospores were sent in letters to various locations in the united states. the recipients of the letters inhaled the spores and were infected with this pathogen; five people died as a result. which of the following statements are true about bacterial endospores? select all that apply.
a-endospores can survive extreme heat, lack of water, radiation, and exposure to many toxic chemicals.
b-both gram-positive and gram-negative organisms form true endospores.
c-endospores are highly durable dehydrated cells with thick cell walls.
d-endospores have a limited lifespan.
e-endospores are reproductive structures.
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