List one spot you will visit during BY112 lab2 and one tool you should bring according to instructions.

In this lab, students will sample three bodies of water on the Clarkson campus. 

Blood midge larva are very tolerant of pollution.

Where can you find benthos?

Stonefly nymphs are abundant in polluted water.

A biological indicator is based on several chemical reactions used to measure the toxicity of water. 

Two main factors that are taken into account when determining biodiversity are

Why are benthic macroinvertebrates good indicators of watershed health:

It is best practice to carry out __________ replicate(s) for an experiment.  

The variable that is affected and measured in the experiment by the investigator is the _______________ variable.