Question

composting
as part of a class excreby
composting, two students
constructed identical wor
(containers), which they kept at
their homes. red worm
students counted the number of red worms in their bins on the
tirst of the month. the results are shown in the graph below.
it was hypothesized that there was a maximum number of red
worms that could survive in the worm bins. is this hypothesis
supported by the data in the graph?
a no, because the number of red worms in student 2s bin
decreased between december and january.
b yes, because the number of red worms in student 2s
bin continued to increase between september and may.
c no, because the number of red worms in student 1s bin
decreased between december and may.
d yes, because the number of red worms in student 1s
bin remained fairly constant between december and
may.

Explanation:

The hypothesis is that there was a maximum number of red worms that could survive in the worm bins. Looking at the graph, in Student 2's bin, the number of red worms decreased between December and January. In Student 1's bin, the number of red worms decreased between December and May. So the hypothesis is not supported as the number of worms did not remain at a maximum but rather decreased.

Answer:

A. No, because the number of red worms in Student 2's bin decreased between December and January.