Which of the following has caused the population of the southern sea otters to fluctuate?
A) decline in population of orcas
B) parasites from house cats
C) parasites from dolphins
D) high reproductive rates
E) extinction of algal species

Question

Quizplus · Accepted Answer

Parasites from house cats, specifically the Toxoplasma gondii parasite, have been identified as a cause for the fluctuation in the population of southern sea otters. This parasite can make its way into the ocean through contaminated runoff water and infect sea otters, leading to illness or death.

Which of the Following Has Caused the Population of the Southern