Answer:
Lugar y fecha de introducción: El jacinto de agua fue introducido desde su hogar natal en América del Sur a varios países por personas bien intencionadas como planta ornamental; a los Estados Unidos en la década de 1880. Se introdujo en Egipto alrededor de 1879. Se extendió al Congo, el Nilo y el lago Victoria en la década de 1950.
Explanation:
Answer:Ecological succession.
It can be primary or secondary.
Primary succession occurs on a virgin land ,which has not be colonized before. E.g sand dunes or nee community of plant after volcanic eruptions.
Secondary succession occurs: on an area of land that has been cultivated in the past ,e.g abandoned farmland.
Ecological succession begins with the pioneer organisms(plants and Animals) Theses are the first organimds to inhabit the land arear.The changes in species composition continues with gradual transitions which may takes years to reach a natural stable community refers to as Climax community.
Explanation:
I think the answer is adapt. Although, it could be anything along the lines of that or evolve.
Both options are valid because they have happened before and can influence the mentioned drop in the population. Toxins in the food chain, just like the increase of water temperature, are easily proven and found and are mostly human made.