. Water Critter Key - Life in a Pond - EEK! Water Critter Key - Life in a Pond This is a dichotomous key. Dichotomous means divided into two parts or classifications. Keys are used to identify plants and animals. To give this key a try, pick a critter from the aquatic critter key game. Look at your critter and choose one of the descriptions given. A simple guide to small and microscopic pond life - main One of the most rewarding subjects for study with a microscope are freshwater organisms. Simple collecting methods include squeezing water plants into a jar and for free swimming species, a fine-meshed plankton net is recommended. For simple tips see how to collect microscopic pond life.
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