Answer:
The populations become adapted to different environments and eventually become so different that they cannot interbreed to produce fertile offspring.
Speciation is the evolution of one species into two different kinds, and when they become isolated, that is the final step, since they cannot interbreed any longer.
Answer:
A and B
Explanation:
A and B are correct answers.
C is incorrect because Botulism does not produce stiff muscle, in fact it produces flaccid paralysis. Stiff muscles and lockjaw is produced by C. Tetani.
D is somewhat incorrect because, although you can kill the toxins via heat, you would need to heat your food to over 100°C for around 10 minutes, which no one does. Thus, reheating beans would not protect you from the bacteria and/or its toxins.
Could you make this into a singular question? I did this recently and would be happy to help, but I cannot just give you my entire report...
Gibberellins break seed dormancy and promotes germination. However abscisic acid is the only hormone known to induce and maintain seed dormancy