Gulls, crows and herons are all opportunists. They'll eat just about anything that they can get their beaks on. That includes fiddler crabs.
Answer:
Mutations in that organism, which can possibly lead to cancer (via mutations in the proto-oncogenes or tumor-suppressor genes)
Answer:
Destrucción de hábitats naturales, tanto terrestres como marinos y otros acuáticos. Destrucción de ecosistemas de todo tipo. Extinción de especies animales y vegetales. Interrupción de las redes y relaciones tróficas.
Explanation:
