Question

A scientist collected information about a population ofsalamanders in a riverbank.19751985199520052015Salamander Population over TimeYearNumber ofindividuals38404257In 2004, a severe flood occurred. Which claim best explains thedata?A. The ecosystem was unstable until the flood occurred.B. The flood made the ecosystem less stable, but itrecovered by 2015.c. The flood made the ecosystem less stable, and it hasnot yet recovered.D. The flood did not affect the stability of the ecosystem.

Answer 1

The data shows that prior to 2005 the slamander population was realtively stable at around 40 orgainsms. After the flood in 2004 the following population are a lot lower at only 5 and 7.

The best explaintion would be option C that states that the flood has made the population less stable and the salamanders have not recovered yet. Since the 2015 data is very similair to the 2005 which was right