One of the constant is the water and time
Cyanobacteria is the answer
I'm pretty sure it's <span>both. Allopatric speciation occurs when there is a physical barrier formed like a mountain or river. and Sympatric speciation occurs when there is a genetic barrier formed like a mutation that causes a different mating season or preference in mate choice.
hope this helps!</span>
Answer:
Microbial toxin. Microbial toxins are toxins produced by micro-organisms, including bacteria and fungi. Microbial toxins promote infection and disease by directly damaging host tissues and by disabling the immune system. Some bacterial toxins, such as Botulinum neurotoxins, are the most potent natural toxins known.
Explanation:
