Read the article's introduction (paragraphs 1-3] and the final three paragraphs of the article.
What is one connection between these two
selections?
А
They both explain how gaining or losing top
predators changes ecosystems.
B
They both describe ways in which sea otter
populations and their ecosystems have
changed over time.
с
They both outline specific human activity that
has had negative consequences on
ecosystems.
D
They both define the term "trophic cascade"
and provide examples that illustrate its impact
on ecosystems.